Failed start:
Could not activate remote peer: startup job failed.
Name : spectacle
Version : 24.02.2-1
Description : KDE screenshot capture utility
Architecture : x86_64
It is an FFmpeg 6 issue. I updated to FFmpeg 7.
spectacle: error while loading shared libraries: libavcodec.so.60: cannot open shared object file: No such file or directory
Re-installed ffmpeg 6.1, back to normal.