All ghpythonlib.components returning None

Hi all–I posted a similar question a while back, but the problem is actually more general than I’d previously described so I thought I’d try again.

Periodically when working in Rhino with a grasshopper script running in the background, ghpythonlib components will all start returning None:

Restarting Rhino and grasshopper solves the problem, but is obviously inconvenient. Has anyone else run into this? Is it a bug that can be fixed?