digikam shows the thumbnail the right way gwenview shows them upside down lots of the time digikam, gwenview, firefox, etc. all show the full picture right side up Reproducible: Always Steps to Reproduce: always happens with the file I will attach 1. open the file with gwenview 2. click browse so you see the thumbnail 3.
Created attachment 93044 [details] this file shows upsidedown in the thumbnail
Created attachment 93045 [details] a screenshot of what the other file looks like for me in thumbnail view
TL;DR: update your Qt5 *** This bug has been marked as a duplicate of bug 343044 ***