Created attachment 154837 [details] GUI Images SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Installed via PPA, and Software Manager, trying to troubleshoot, purged installation between. 2. Opened the Compositions and Effects tabs to a white screen. 3. Attempted to resolve the missing dependency "libkf5declarative" without success. OBSERVED RESULT White panels, no tooling. EXPECTED RESULT Populated panels with tooling. SOFTWARE/OS VERSIONS Linux/KDE Plasma: ADDITIONAL INFORMATION