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]

could be related
1.9.5 - browser - thumbnails - issue with thumbnails generation

[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.

[insession]

Might anybody have an idea how to fix these unrotated thumbnails? I've done database maintenance and rebuilt all the thumbnails, but no change...

[alee001]

I've had a similar problem. After rotating a JPG images within a thumbnail, it updates, but it doesn't seem to work when I switch to full screen. I have to move to another image within the thumbnail, press F5, and then switch to full screen to see the rotated JPG image.

[insession]

In my case, doing this doesn't change anything. I cannot, for the life of me, get those mis-rotated thumbnails to display properly. Here's how this still looks

[insession]

Decided to remove xnview MP (only had zipped install), and put in xnview classic: same problem presists!

See attachment.

Other image viewers, eg Faststone, don't have the issue.

How can I fix this?

Peter

[insession]

Can anybody suggest any solution to this annoying problem?

I've removed xnview completely, installed the updated version 1.98, and the same problem! I do NOT have this problem in other image programs. So weird.

Thanks!

Peter

[user0]

share your jpeg file

[insession]

Here you go - thanks.

[user0]

file has embedded thumbnail that is upside down, and EXIF orientation tags = 1 (Normal, 0° rotation) for both: image (IFD0) and thumbnail (IFD1)
so app has no reason to autorotate anything

you have to fix your files manually
1. select file(s)
2. fix embedded thumbnail

• rotate
  - press 'EXIF thumbnails - Rotate 90 left' (OR right) few times in Metadata > EXIF Thumbnail
  
  OR

• rebuild
  - press 'EXIF thumbnails - Rebuild' in Metadata > EXIF Thumbnail
  
  OR

• delete
  - press Clean.. and select 'EXIF thumbnail' in Metadata menu

[insession]

That's so awesome, thanks! The rebuild exif thumbnails worked! What a relief!

Do you have any idea how this gets messed up in the first place? I'd like to avoid this going forward!

[user0]

Do you have any idea how this gets messed up in the first place? I'd like to avoid this going forward!

it could be limited functionality/bug in camera software or an app if you edited your files