Wrong thumbnail orientation after JPEG lossless transformation

[erty]

Internal thumbnail rebuild not always work correctly after JPEG lossless transformations

how to reproduce:
1. Take my photos (1. Orientation right-bottom (7), 2. Orientation left-top (5)). Windows explorer and Xn thumbs is ok there
2. In Browser mode select them and do JPEG lossless transformations -> rotate based on EXIF orientation field
3. Now in Browser mode thumbs have incorrect orientation despite everything is ok in Viewer mode or in Windows explorer

In some my experiments thumbnail for the second photo sometimes oriented correctly (and sometimes not) but the first photo always incorrect.

disable caching, rebuild thumbnails, or delete it won't help.

files link https://drive.google.com/drive/folders/ ... sp=sharing

XnViewMP 1.4.5
Windows 11 22H2 x64

[xnview]

Thanks to your detailed description I can reproduce the problem.

[xnview]

This problem is supposed to be fixed in XnView MP 1.5.0 beta. Please check and confirm the bug fix here.