Hi,
first off all I want to congratulate all contributing developers to this amazing application.

I just migrated my pictures to a new computer running Ubuntu 16.04 lts including an update of DK from ver. 2.5.0 (4.8.5) - SQlite3.db to 5.6.0.

All went quite smoothly except for I didn't succeed to get back my tags, although the information is shown under Metadata/IPTC/Keywords and under Properties/digiKam properties (Captions, Tags, Rating).

Any idea how I can back "my Tags" (as a Tags tree) as it was before migrating?

B.t.w. I tried to add a new tag with the Tag Manager which resulted in: Tag Path: /test, Error: "Failed to add tag to database". "Read Tags from Image" -> doesn't work.

Somebody who knows what's the problem/has a solution to it?