XnView Software

XnViewMP 1.4.2 64bits
Windows11 64bit (22H2), display resolution 3840x2160, win scaling 150%

Fullscreen
background turns black when editing Info

To reproduce:
1. run clean portable XnViewMP
2. open any image in Viewer mode
3. press f11 to switch into Fullscreen mode
4. press f12 to open Settings
5. goto View > Info tab and make any change
background of the image will turn black

Thanks to your detailed description I can reproduce the problem.

This problem is supposed to be fixed in XnView MP 1.4.3. Please check and confirm the bug fix here.

fixed in 1.4.3