Categories nearly always sync incorrectly when I import a document to a particular category in MarginNote 3 on my Mac (10.15). The documents eventually sync over to my iPad (iPadOS 13) via iCloud, but they are nearly always in the wrong category. Often, they show up in whatever category I was last using on the iPad, regardless of what category they were imported in on my Mac.
This is completely maddening to me and has been a problem for years. Please let me know how I can help to fix this bug.