Hello Thierry,
We've been debugging this problem with another user and got to some conclusions. We think this may have something to do with some Rhino settings. In any case, here is a solution.
Please, download this zip file:
https://drive.google.com/file/d/1gkvxz9 ... sp=sharing
Then unzip it and, with Rhino closed, copy the two files and paste them in this folder (replacing the existing ones): C:\Program Files\Next Limit\Maxwell for Rhino replacing the existing ones.
This will solve the problem
You will find some new things there (not published yet)
: a new Materials toolbar (very useful for material creation or bulk adding several materials at the same time to the materials panel), a new pack and go function in the menu and some options for adding grass and scatter extensions. Please, don't use the grass or scatter extensions with this version of the plugin or Rhino will crash when launching a render (it requires an update from the engine side).
I hope this helps,
Kind regards,
Fernando