Global Inbox glitch

Strange glitch: empty groups being auto-created in Global Inbox named ‘Documentation’; each with a small blue icon.

I keep deleting them but they keep re-appearing. Each with same Created/Modified dates/times but varying ‘Added’ dates/times.

Any clues as to what is happening and how to stop it?

See viewtopic.php?f=3&t=11978

many thanks. working so far…