Switching (list) filters doesn't update list, search not working

Hello. This is not easily reproducible, but I will update the topic when I find a way.

When returning to Glyphs after switching to a different app, the filters/search function in the font view have no effect. The group of displayed glyphs doesn’t change, it stays on the old selection.

Re-opening the file works, but it doesn’t start working again on the other file I still have open. I need to re-open that one too.

I have never seen that. Did you run any scripts before this happens?

No. I didn’t run any scripts. I will keep an eye on this and will let you know if I can find steps to reproduce it accurately.