After upgrading to 6.3.0 I noticed that window menu in Sublime Text started misbehaving:
- When I click on “Project”, menu bar item gets highlighted, but the menu itself doesn’t show up
- Clicking again removes the highlight from the menu item
- Clicking once more somehow shows “File” menu instead
Reverting Sublime Text to a previous version did nothing. But rolling back the system to Plasma 6.2.5 (via ZFS snapshots) fixed the issue.