Latest RIR grasshopper conflict with Bison Plugin


Revit 2019.2.1

this release of rir seems to have issues with the Bison plugin, or is this a ironpython issue?
i dont really need bison while running RIR, but i do in Rhino 6. is there a way to unload specific plugins for wip?

Based on the error message above this seems to be an IronPython issue. Please take a look at this post and see if disabling Dynamo might resolve the issue