# Latest

**URL:** https://discourse.pollination.solutions/latest.md

[Latest](https://discourse.pollination.solutions/latest.md) · [Categories](https://discourse.pollination.solutions/categories.md) · [Tags](https://discourse.pollination.solutions/tags.md)

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## [Welcome to Pollination discourse forum!](https://discourse.pollination.solutions/t/welcome-to-pollination-discourse-forum/7)

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**Author:** [@system](https://discourse.pollination.solutions/u/system)\
**Replies:** 0\
**Last updated:** [March 30, 2021, 11:17pm UTC](https://discourse.pollination.solutions/t/welcome-to-pollination-discourse-forum/7 "2021-03-30T23:17:56Z")

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Welcome to Pollination discourse forum! This forum is the best place to ask all your questions related to Pollination and its product and also find the answer to your questions! To keep the forum organized we have cre…

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## [Can I change an external wall to an internal wall?](https://discourse.pollination.solutions/t/can-i-change-an-external-wall-to-an-internal-wall/29540)

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**Author:** [@seanpuskar](https://discourse.pollination.solutions/u/seanpuskar)\
**Replies:** 1\
**Last updated:** [October 30, 2026, 8:31pm UTC](https://discourse.pollination.solutions/t/can-i-change-an-external-wall-to-an-internal-wall/29540 "2026-10-30T20:31:32Z")

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I’m working on a project that is a fit-out of just one room. When I imported into Pollination, only one room showed up, which was to be expected, as that is all the architect has modeled out in the model we are working …

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## [Pollination add-in not working](https://discourse.pollination.solutions/t/pollination-add-in-not-working/29536)

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**Author:** [@balamurugan](https://discourse.pollination.solutions/u/balamurugan)\
**Replies:** 2\
**Last updated:** [October 30, 2026, 7:13pm UTC](https://discourse.pollination.solutions/t/pollination-add-in-not-working/29536 "2026-10-30T19:13:38Z")

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Hi Team, Pollination add-in is not working

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## [Copy Rooms from Link not working](https://discourse.pollination.solutions/t/copy-rooms-from-link-not-working/29539)

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**Author:** [@jsanchez7](https://discourse.pollination.solutions/u/jsanchez7)\
**Replies:** 4\
**Last updated:** [October 30, 2026, 7:12pm UTC](https://discourse.pollination.solutions/t/copy-rooms-from-link-not-working/29539 "2026-10-30T19:12:48Z")

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I am trying to use the “Copy Rooms from Link” button, but nothing seems to happen when I press OK. I have tried both checking on and off the “is Room Bounding” box. The question mark on the tool also seems to not be resp…

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## [Export Select Rooms](https://discourse.pollination.solutions/t/export-select-rooms/29538)

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**Author:** [@mdouglass](https://discourse.pollination.solutions/u/mdouglass)\
**Replies:** 4\
**Last updated:** [October 28, 2026, 2:31pm UTC](https://discourse.pollination.solutions/t/export-select-rooms/29538 "2026-10-28T14:31:50Z")

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Is there a way to export only selected rooms with the new Revit Connector? Only a small portion of the level has changed, so I don’t want to export the entire level unnecessarily.

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## [Pollination Revit add-in Error 47](https://discourse.pollination.solutions/t/pollination-revit-add-in-error-47/29537)

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**Author:** [@nynepbermel](https://discourse.pollination.solutions/u/nynepbermel)\
**Replies:** 4\
**Last updated:** [October 27, 2026, 10:14pm UTC](https://discourse.pollination.solutions/t/pollination-revit-add-in-error-47/29537 "2026-10-27T22:14:43Z")

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@mostapha I have team members reporting an error code while trying to check out a Revit plugin license. The message is “Failed to check out license from the pool: Error code: 47 Error message: The difference between the …

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## [I could not able to find the Grasshopper plugin on the website](https://discourse.pollination.solutions/t/i-could-not-able-to-find-the-grasshopper-plugin-on-the-website/29535)

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**Author:** [@snehal-raut](https://discourse.pollination.solutions/u/snehal-raut)\
**Replies:** 1\
**Last updated:** [October 27, 2026, 5:45am UTC](https://discourse.pollination.solutions/t/i-could-not-able-to-find-the-grasshopper-plugin-on-the-website/29535 "2026-10-27T05:45:51Z")

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There is not an option for the grasshopper plugin download

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## [Ladybug Plugin Crashes Rhino](https://discourse.pollination.solutions/t/ladybug-plugin-crashes-rhino/29534)

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**Author:** [@avschu](https://discourse.pollination.solutions/u/avschu)\
**Replies:** 2\
**Last updated:** [October 26, 2026, 9:26pm UTC](https://discourse.pollination.solutions/t/ladybug-plugin-crashes-rhino/29534 "2026-10-26T21:26:52Z")

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I’ve been trying to use Ladybug components in my grasshopper, but nothing places onto the canvas and then it freezes and crashes my Rhino entirely. I downloaded Ladybug from Food4Rhino, and then tried again using Pollina…

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## [Revit to IES Model Elevation Issue](https://discourse.pollination.solutions/t/revit-to-ies-model-elevation-issue/29526)

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**Author:** [@emilydemboski](https://discourse.pollination.solutions/u/emilydemboski)\
**Replies:** 4\
**Last updated:** [October 24, 2026, 1:22am UTC](https://discourse.pollination.solutions/t/revit-to-ies-model-elevation-issue/29526 "2026-10-24T01:22:58Z")

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Hello, I’m having an issue with my building’s first floor appearing partially underground or not at all when transferring the model from the Revit Pollination Plugin to IESVE. As a result, the first-floor windows and do…

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## [Natural ventilation control issue](https://discourse.pollination.solutions/t/natural-ventilation-control-issue/29524)

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**Author:** [@nicholaskerr](https://discourse.pollination.solutions/u/nicholaskerr)\
**Replies:** 1\
**Last updated:** [October 22, 2026, 6:32pm UTC](https://discourse.pollination.solutions/t/natural-ventilation-control-issue/29524 "2026-10-22T18:32:45Z")

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Hi there, I am trying to assign vent control to rooms set up in pollination with their window opening properties defined in pollination. Is there a way to do this natively in pollination? If i do it in grasshopper then …

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## [Dynamo cannot be started when the Pollination add-in is installed. Revit 2026.4](https://discourse.pollination.solutions/t/dynamo-cannot-be-started-when-the-pollination-add-in-is-installed-revit-2026-4/29487)

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**Author:** [@davi](https://discourse.pollination.solutions/u/davi)\
**Replies:** 2\
**Last updated:** [October 20, 2026, 1:53pm UTC](https://discourse.pollination.solutions/t/dynamo-cannot-be-started-when-the-pollination-add-in-is-installed-revit-2026-4/29487 "2026-10-20T13:53:49Z")

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I just found an issue with the current pollination version (fresh install) and revit 2026.4 and Dynamo. With pollination addon installed its not possible to open dynamo (visual scripting). If i remove the pollination…

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## [Interior walls are being treated like exterior](https://discourse.pollination.solutions/t/interior-walls-are-being-treated-like-exterior/29523)

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**Author:** [@cemresonmez](https://discourse.pollination.solutions/u/cemresonmez)\
**Replies:** 1\
**Last updated:** [October 20, 2026, 1:51pm UTC](https://discourse.pollination.solutions/t/interior-walls-are-being-treated-like-exterior/29523 "2026-10-20T13:51:03Z")

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Hi! I was importing rooms from Revit to pollination and the boundary conditions and when I run the model report everything seems fine. However, when I highlight the exterior walls all the walls are highlighted. How can I…

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## [Windows and curved wall gives incomplete and split geometry](https://discourse.pollination.solutions/t/windows-and-curved-wall-gives-incomplete-and-split-geometry/29513)

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**Author:** [@altecoop](https://discourse.pollination.solutions/u/altecoop)\
**Replies:** 2\
**Last updated:** [October 14, 2026, 1:55pm UTC](https://discourse.pollination.solutions/t/windows-and-curved-wall-gives-incomplete-and-split-geometry/29513 "2026-10-14T13:55:23Z")

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Hello everyone! I’m working on a project and just finished modelling my project with pollination on revit. On the plugin it shows no problem and the windows and curved wall with glass, they look complete and with no pro…

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## [Ladybug tools fails to load in RIR when used Revit pollination](https://discourse.pollination.solutions/t/ladybug-tools-fails-to-load-in-rir-when-used-revit-pollination/29503)

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**Author:** [@asisnath](https://discourse.pollination.solutions/u/asisnath)\
**Replies:** 14\
**Last updated:** [October 11, 2026, 6:36am UTC](https://discourse.pollination.solutions/t/ladybug-tools-fails-to-load-in-rir-when-used-revit-pollination/29503 "2026-10-11T06:36:39Z")

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Hello. When I used Pollination Revit and open Rhino using RIR and then open Ladybug tools this issue arises. Ladybug tools not loading in RIR. everthing works well when opened Rhino as stand alone. Already tried reinsta…

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## [Can open file, can't preview in 3D](https://discourse.pollination.solutions/t/can-open-file-cant-preview-in-3d/29480)

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**Author:** [@nbem-admin](https://discourse.pollination.solutions/u/nbem-admin)\
**Replies:** 8\
**Last updated:** [October 9, 2026, 9:46pm UTC](https://discourse.pollination.solutions/t/can-open-file-cant-preview-in-3d/29480 "2026-10-09T21:46:43Z")

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Hi, This issue has been bothering me for a long time. Sometimes I can’t open an existing file. And I can’t preview geometries in 3D. The loading is forever and there is nothing I can do besides close the entire pollinat…

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## [Rhino to DesignBuilder: Missing wall faces when exported](https://discourse.pollination.solutions/t/rhino-to-designbuilder-missing-wall-faces-when-exported/29489)

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**Author:** [@keisserie](https://discourse.pollination.solutions/u/keisserie)\
**Replies:** 9\
**Last updated:** [October 9, 2026, 6:54pm UTC](https://discourse.pollination.solutions/t/rhino-to-designbuilder-missing-wall-faces-when-exported/29489 "2026-10-09T18:54:20Z")

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Hi, I tried running po\_solveadjacency before exporting the model from rhino to designbuilder (\*.xml) but upon doing so, there are missing wall faces. I’ve validated the model already, but it says there’s no errors. The …

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## [Appendix G Recipe: Assigned SHW System Error](https://discourse.pollination.solutions/t/appendix-g-recipe-assigned-shw-system-error/29494)

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**Author:** [@vitorleiteg](https://discourse.pollination.solutions/u/vitorleiteg)\
**Replies:** 6\
**Last updated:** [October 2, 2026, 5:21pm UTC](https://discourse.pollination.solutions/t/appendix-g-recipe-assigned-shw-system-error/29494 "2026-10-02T17:21:11Z")

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Hello all, The Appendix G recipe is turning red after failing to run the proposed model. Initially I thought it was due the HVAC system (due to various severe warnings during sizing), but it seems that something related…

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## [Pollination - First time using, couple questions](https://discourse.pollination.solutions/t/pollination-first-time-using-couple-questions/29492)

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**Author:** [@vitorleiteg](https://discourse.pollination.solutions/u/vitorleiteg)\
**Replies:** 6\
**Last updated:** [October 2, 2026, 3:39pm UTC](https://discourse.pollination.solutions/t/pollination-first-time-using-couple-questions/29492 "2026-10-02T15:39:05Z")

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Hello everyone, Been a while since I’ve last used Ladybug tools. Lot’s of Phius work here in New England which unfortunately got me tied to other modeling tools for the past 3-4 years. Now I’m trying to get up-to-date …

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## [Extrusion height of rooms](https://discourse.pollination.solutions/t/extrusion-height-of-rooms/29495)

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**Author:** [@edaozkan](https://discourse.pollination.solutions/u/edaozkan)\
**Replies:** 4\
**Last updated:** [October 2, 2026, 3:09pm UTC](https://discourse.pollination.solutions/t/extrusion-height-of-rooms/29495 "2026-10-02T15:09:24Z")

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Hi, I have extruded all double height spaces to the same level and assigned ‘exterior roof’ as the ceiling boundary condition (the roof is slightly slanted) but some rooms are not following the condition I set. I’ve att…

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## [Plugin installation (one click installer through pollination)](https://discourse.pollination.solutions/t/plugin-installation-one-click-installer-through-pollination/23088)

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**Author:** [@mzmd](https://discourse.pollination.solutions/u/mzmd)\
**Replies:** 4\
**Last updated:** [October 1, 2026, 4:06pm UTC](https://discourse.pollination.solutions/t/plugin-installation-one-click-installer-through-pollination/23088 "2026-10-01T16:06:39Z")

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Hi I’ve been trying to install the ladybug plugin through the one click pollination installer. However, I am just not able to load the plugin after installation. I keep getting various sorts of errors. I have also ensur…

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## [Unable to import rooms with holes/openings in IDA ICE](https://discourse.pollination.solutions/t/unable-to-import-rooms-with-holes-openings-in-ida-ice/29436)

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**Author:** [@davi](https://discourse.pollination.solutions/u/davi)\
**Replies:** 9\
**Last updated:** [September 29, 2026, 2:23pm UTC](https://discourse.pollination.solutions/t/unable-to-import-rooms-with-holes-openings-in-ida-ice/29436 "2026-09-29T14:23:55Z")

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Hey Guys I’m not sure whether this is a bug or a setting, but I’m unable to import rooms with holes/openings into IDA ICE. They are displayed correctly in the Model Editor: In IDA ICE I created a room below it (the…

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## [How to model a slanted room height](https://discourse.pollination.solutions/t/how-to-model-a-slanted-room-height/29488)

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**Author:** [@edaozkan](https://discourse.pollination.solutions/u/edaozkan)\
**Replies:** 3\
**Last updated:** [September 29, 2026, 1:41pm UTC](https://discourse.pollination.solutions/t/how-to-model-a-slanted-room-height/29488 "2026-09-29T13:41:31Z")

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Hi, How do I adjust the building height so that it slopes between 8000 to 9220 on the other side of the building?

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## [Validation Failed](https://discourse.pollination.solutions/t/validation-failed/29479)

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**Author:** [@cemresonmez](https://discourse.pollination.solutions/u/cemresonmez)\
**Replies:** 1\
**Last updated:** [September 23, 2026, 9:27pm UTC](https://discourse.pollination.solutions/t/validation-failed/29479 "2026-09-23T21:27:45Z")

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When I try to validate my model, I get an error saying validation failed

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## [Small adjacencies - tip](https://discourse.pollination.solutions/t/small-adjacencies-tip/29477)

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**Author:** [@cemresonmez](https://discourse.pollination.solutions/u/cemresonmez)\
**Replies:** 1\
**Last updated:** [September 22, 2026, 6:39pm UTC](https://discourse.pollination.solutions/t/small-adjacencies-tip/29477 "2026-09-22T18:39:03Z")

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Is there a way to fox small adjacencies without using auto-align. When I use auto-align the other geometries of the shape gets affected in a way not intended to.

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## [Intersections in IESve](https://discourse.pollination.solutions/t/intersections-in-iesve/29478)

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**Author:** [@cemresonmez](https://discourse.pollination.solutions/u/cemresonmez)\
**Replies:** 1\
**Last updated:** [September 22, 2026, 6:24pm UTC](https://discourse.pollination.solutions/t/intersections-in-iesve/29478 "2026-09-22T18:24:32Z")

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It seems like my model is validated in pollination. However, when I run model report in IESve I am getting many intersections and zero volumes.

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## [Dimension line vs thickness](https://discourse.pollination.solutions/t/dimension-line-vs-thickness/29476)

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**Author:** [@andrisv](https://discourse.pollination.solutions/u/andrisv)\
**Replies:** 2\
**Last updated:** [September 22, 2026, 4:03pm UTC](https://discourse.pollination.solutions/t/dimension-line-vs-thickness/29476 "2026-09-22T16:03:32Z")

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Hello, I have a question about how building dimensions are handled in the Rhino plugin-specifically, in which direction from the drawn dimensions the thickness of the assembly layers is added (if at all). In the Rhino dr…

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## [Vertically overlapping levels](https://discourse.pollination.solutions/t/vertically-overlapping-levels/29466)

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**Author:** [@cemresonmez](https://discourse.pollination.solutions/u/cemresonmez)\
**Replies:** 6\
**Last updated:** [September 21, 2026, 2:46pm UTC](https://discourse.pollination.solutions/t/vertically-overlapping-levels/29466 "2026-09-21T14:46:03Z")

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I am getting vertical overlap between two levels but when I check the elevation and floor to floor length it does not look like it should be vertically overlapping.

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## [Simplifying Shades inside Revit Plugin for IES-VE](https://discourse.pollination.solutions/t/simplifying-shades-inside-revit-plugin-for-ies-ve/29422)

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**Author:** [@sramas](https://discourse.pollination.solutions/u/sramas)\
**Replies:** 3\
**Last updated:** [September 18, 2026, 3:02pm UTC](https://discourse.pollination.solutions/t/simplifying-shades-inside-revit-plugin-for-ies-ve/29422 "2026-09-18T15:02:58Z")

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Hi Mostapha, I don’t know if this is the right place to ask as I am not sure if it’s an issue with how IES handles shades. I came across these two threads Revit to Rhino to GEM to IES-VE Adding Thickness to Shading E…

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## [Modeling Tilted or Slanted Walls](https://discourse.pollination.solutions/t/modeling-tilted-or-slanted-walls/29465)

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**Author:** [@michaelschoemaker](https://discourse.pollination.solutions/u/michaelschoemaker)\
**Replies:** 2\
**Last updated:** [September 17, 2026, 10:56pm UTC](https://discourse.pollination.solutions/t/modeling-tilted-or-slanted-walls/29465 "2026-09-17T22:56:04Z")

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Hey everyone, I’m using the Revit model editor to create the geometry for a building with a large entrance/atrium space that has the exterior glazed walls slanted from the vertical plane towards the ground. Does anyone …

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## [Rhino to DesignBuilder (export to dsbXML) Issue](https://discourse.pollination.solutions/t/rhino-to-designbuilder-export-to-dsbxml-issue/29460)

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**Author:** [@russrey](https://discourse.pollination.solutions/u/russrey)\
**Replies:** 3\
**Last updated:** [September 17, 2026, 8:08pm UTC](https://discourse.pollination.solutions/t/rhino-to-designbuilder-export-to-dsbxml-issue/29460 "2026-09-17T20:08:14Z")

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How to have multiple rooms in a single block in DesignBuilder from the Rhino xml export? I saw in the video above that after importing the xml to DB, the block (ex. 01 - Entry Level) has all the rooms/zones inside (ex. 1…

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