CollisionGroups cannot be set in studio when outside of workspace

If you set the CollisionGroup manually in studio to a non-Default CollisionGroup for an Instance not under Workspace, it will give you this error:

This will cause the CollisionGroup to be invalid until it is placed in Workspace where it will magically fix itself.

I’ve confirmed with the help of another developer, so it seems to be more than just a fluke.

I’m not sure if this is some weird broken state, or if the error is appearing incorrectly, but there’s no reason setting a collision group outside of workspace shouldn’t work in studio

Addendum: just found out someone else posted the same bug report, oops