FCPX move media from library to timeline but it kept move back to library
I drag media from library to timeline. It could not stay in timeline. It kept bounce back to library. I sometimes drag it to timeline I had to push hold mouse until inspection information appear then let my finger go from mouse. It sometimes work but lately It does not work. Why does it happened? Any suggestions?
iMac 27″ 5K, macOS 13.5