Wrong Clip Drags to Timeline?

Is this a known bug? Let's say that I have Clip A, Clip B, and Clip c in my browser. I drag clip B to the timeline. Most of the time it works as expected. But other times, seemingly at random, Clip C will actually drag to the timeline instead for no discernible reason. Anyone else experience this? At first it made me think that perhaps I was going insane. I'm using FCPX 10.4 and I'm still on Low Sierra.

This is the first time I see someone reporting this kind of issue. I have looked around but couldn't find anything about this on the web either. So it's definitely not a known bug.

Are the clips you mention really standalone clips, or are they Favorites or Unused parts of a longer master clip?

If they are standalone clips, maybe it's time to refresh your FCP X preferences.

- Ronny

They are completely separate files. How do I delete my preferences without having to go through and reset everything back to the way I like it, like it is now? For example I STILL haven't gotten Photoshop back to the way I like it after pressing a wrong button one day.

Trashed preferences. No difference sadly. The occasional wrong clip still occurs (intended clip remains highlighted int he browser.).