It seems Rhino loses some commands while the custom asset generator is running.
For instance: A few of the sub-commands under the properties tab disappear. (material, mapping, etc.) while an object has been selected.
I noticed this when getting an alert that my custom asset was larger than 20K polygons and tried to see which mesh was too heavy.
Also, oddly - the delete key on the keyboard stops working under the same conditions.
I'm not sure if this is a bug or a necessary set of conditions for the asset generator code to function.
Anyone else seeing this? I'm running Rhino 6 with 2.9+32504.