Quicklook stops working

I use quicklook loads on Mac. (Space bar to quickly preview selected file). In Monterey 12.5 (since 12.4 as I recall) it stops working a few times a day - just shows a little thumbnail instead of playing a video etc.

If I kill all quicklook processes or restart Finder the problem goes away ... for a while. Can we get some action on this from Apple? I have the same problem on two Macs. Plenty of other users with the same problem: Quicklook isn't working after Monterey up… - Apple Community