Dear Norbert, > kwin 5.19 has migrated to testing. No need to roll back to 5.17. Thanks! Now I see. I guess I was just sitting waiting for a "resolved/closed" tag to appear in this thread before checking apt update. Shame on me. So the problem was that kdecoration was bumped before kwin, since they are not coupled? Thanks again and keep up the good work! Dario