I've worked out what the issue is! This bug occurs if you try to set a Window border size (any size, other than none) for Breeze.
This is Settings under Appearance -> Window Decorations/ Window border size (bottom left). Setting a border size for Plastik (which has one by default anyway) is OK. But Breeze (default none) doesn't like you setting any. I set Tiny, as otherwise overlapping window just merge into one another with no dividing line. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971630 Title: shaded windows forget their height on restore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/1971630/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs