XnView Software

I can reproduce the Export dialog crash on best fit button under XnViewMP 1.54 (Windows 10 64bit).
You get my crash log file via XnviewMP.

Here are my steps to reproduce the problem:

1. Open a picture file (picture format and resolution does not change anything)
2. File => export
3. JPEG tab is opened (80% quality, standard, remove metadata, DCT slow, subsampling 2x2, 1x1,1x1)
4. Maximize export window
5. Press refresh preview button
5. Preview window refresh perfectly
6. Press fit to window button
7. Press Export ... button
8. Crash of XnviewMP 1.5.4

(See gif animation below)

Thanks to your detailed description I can reproduce the problem.

160b
- fixed in Export dialog

- still crashes in Import > Replace dialog

ok will be fixed

This problem is supposed to be fixed in XnView MP 1.6.0. Please check and confirm the bug fix here.

fixed in 160