How do I get rid of these ghost effects?
[Final Cut Pro V12.0]
I downloaded an effects pack a while ago, which I believe I removed some time later. I can confirm this as they do not appear in my effects folder nor by a general search in finder.
However, they still appear in the Final Cut Pro effects tab. If I apply them it appears as the red 'missing effect' screen. If I right-click and select 'open in Motion', Motion opens but doesn't show a window and becomes responsive.
How do I get rid of these ghost effects? They are very annoying as they add a mile of scroll time to the effects category list.
Mac Studio, macOS 26.3