Version: (using KDE 4.3.2) Compiler: Fedora 11 included compiler. OS: Linux Installed from: Fedora RPMs This is in 1.0 beta5. I selected a handful of images, and did a "batch rotate 270 degrees" into a new folder. For some reason it wasn't allowing it to overwrite images, so I told it to do them into a sub-folder. Then I deleted the images in the current folder, moved the images from the sub-folder into the current folder. The thumbnail was the new image. *THEN* I changed the tags on those images and did "Apply" and the thumbnails reverted to the original images. I then clicked on the "rotate right" button on one image, and the thumbnail showed the image rotated 180 degrees (meaning the thumbnail now showed the correct image rotated right 90 degrees). I then did a "Rebuild thumbnails" and the thumbnails were fine.
I cannot reproduce this in beta6.