Finder file preview not working on Sequoia

This seems to happen periodically with new MacOS releases. Note that the Quicklook preview does work, just not the icon preview.

Yes, I do have the same exact issue!!
Restart did nothing.
Any help?

i can confirm that having upgraded to the monster tree os recently, i like it actually like that, the thumbnails where crap anyway. unfortunately the file size still is the same exorbitant for almost zero geometry. in windows you get to store them in the 100kb range, while on mac these buggers need 5 mb. i was told that was the thumbnail being produced that needs so much space, i argued that not even a super highrest image if compressed acordingly would need such a large file size. and now after these fail finally the prove is there that the large file has zero to do with thumbnails… i am afraid developers have no clue themselves why that is so…

also please dont fix it, there are so many other things which make rhino unusable which still dont work which need much rather attention.

The same issue is also bugging me, but I am still on Rhino 7.
It would be great if this version could get this little fix, too.

I am also using the Affinity suite, and thumbnails behave similarly (here, the Quick Look preview is not working with Affinity anymore). I also find that this problem with the new macOS might be linked to some new API or something that Apple changed in system directories.

BUMP<
This is still broken and needs fixin’.

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This is on the list as RH-84357 Mac on Sequoia 15.0.1 Missing Thumbnails
Thanks,
-wim

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See the fix here:

Thanks, Mary. I had some time yesterday and tried reinstalling MacOS 15.1. Unfortunately, my Rhino thumbnails and the Quicklook previews are still not showing up. May just need to wait for Apple to fix this. Grumble.
(Edit: typed 18.1 instead of 15.1)