We are aware of this issue. This is happening because there are version conflicts between the dependencies for the Pollination Rhino and the Pollination Revit plugins. The Revit plugin is usually a couple of minor versions behind.
We have been planning for exposing the Revit plugin functionalities in RIR and as part of that, we will be fixing this issue.
Meanwhile, if you want the Rhino plugin to work with RIR you can uninstall the Pollination Revit plugin. Sorry for the inconvenience!