Clip rename in TImeline doesn't always work

In the attached GIF you can see me change a clip name. When I press enter, the name reverts back to what it was.
Weird.

Hmmm for some reason the GIF is not attaching. Are they not allowed here on the forum?

Suzero wrote: Hmmm for some reason the GIF is not attaching. Are they not allowed here on the forum?

indeed, gif, and my favourites anim-gifs (to explain things) don't work here.
best results: jpeg, 1000pix wide, small compressed

That's a shame they don't allow it as it's so much easier than describing everything in text.
In this particular case a JPG still won't demonstrate the problem, so I'll just leave it at text, but thanks for your reply!

I can change clip names either in the Timeline Index or right-click the clip, Change Clip Name, just fine. Just FYI.

Is it every clip in that specific timeline?
Is it in every timeline of that Event and Library?
Does it happen to all projects, in all events, in all libraries?

My guess is that this is going to be either project or library specific.