UID duplicate detected -- but the UIDs are different?

I’m getting a UID duplicate detected warning when I open my project that points out res://(blah blah)/1_gb.ogv and res://(blah blah)/0_gb.ogv

And yet …

$ cat 0_gb.ogv.uid
uid://dea81gbonxgvt
$ cat 1_gb.ogv.uid
uid://dw074qvgjhox7

So I’m confused as to where the problem is. Can something else trigger this warning?

Edit to add some extra details: Happens every time I load the project, running 4.5.1-stable

And the warning returns every time you open the project?

Yes. It’s come up every time I’ve opened it - I think since I updated to 4.5.1 stable, maybe.