I have 57 folders inside Scripts root folder.
They are well-organized and have several levels of hierarchy:
10 general folders containing (or not) files and folders. The deepest level is 3 folders.
AI ignores folder content at I would say folder 54 and doesn't expand the last three. Clicking won't help.
Do you have any limitations for nested folders in AI?
Why it is not documented then?
Anyway, fix it, please.
Fix at least something besides your fresh CC 2019 bugs (that you still don't fix).