Thumbnails are not updating rotation

[insession]

jpg rotation works super fast and well, however thumbnails remain in the wrong orientation, which makes looking through lots of thumbnails tedious.
Win 11 and xnviewmp 1.9.5
See screenshot of thumbnail after rotation: preview is great, thumbnail still upside down. Have rebuilt dbase of thumbnails, no resolve.

Thanks much.

[xnview]

how do you rotate Settings>Borwser>Misc?

[insession]

I rotate different ways. Usually select one or more images and click the left or right rotate button on the menu bar.

In the settings>browser>misc dialog, I have exif deselected, and lossless selected.

I also don't know how to get thumbnails that now show the wrong orientation back to normal (after the actual image has been rotated appropriately).

[user0]

there is some issue
nothing happens when creating thumbnail via 'EXIF Thumbnail - Rebuild' on this file

[insession]

Yes, nothing happens when creating thumbnail via Exif only.

Not sure what you mean by "rebuild on this file".

I can't replicate the problem at will, however I have many thumbnails now who's rotation is out of sync with the rotated images. A bit frustrating.