Looking at the octopus food4rhino it was last updated in 2018 and intended for Rhino 6, as well as numerous reports of conflicts with other plugins.
RiR doesn’t use the HelixToolkit WPF library, you could check for a conflict with a Revit Add-in.
What data type are you analyzing? Perhaps send it out to a non-Revit instance of Grasshopper with GHdata?
ghdata RiR Brep out
