SUMMARY Kwin compiled against Qt 5.15.2 crashes when trying to enable compositor STEPS TO REPRODUCE 1. build kwin against Qt 5.15.2 2. Try to enable compositor 3. kwin crashes OBSERVED RESULT kwin crashes EXPECTED RESULT compositor to be enabled All KDE is current release Qt Version: 5.15.2
Built Qt 5.15.2 out of sequence resulting in improper linking to old Qt 5.15.1. Fixed in a recompile of Qt 5.15.2.