I have never experienced that , but if I did come across it I would try a Preferences reset. Photoshop preferences can get corrupted and lead to unusual behaviour.
To reset - go to Preferences >General and click Reset Preferences on Quit. Then click OK and close and restart Photoshop.
I just tried your fix, but it still doesn't work for me, pop ups still won't go ='(
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If resetting preferences did not work my next steps would be:
1. Uninstall and reinstall ( a fairly straightforward process with the CC desktop app)
if that also did not work
2. Uninstall, run the Creative Cloud cleaner tool , and reinstall
Don't forget that, with a current CC subscription, you also have access to Adobe support (link at the top of this forum) who will be able to look at your PC and perhaps see something that remote users on a forum cannot.