0.97.0 - macOS fullscreen doesn't work on High Sierra

[bran-g89]

This bug here https://www.xnview.com/mantisbt/view.php?id=1784 is still present on my configuration: macOS High Sierra 10.13.6 on a late 2011 Macbook Pro.
I am still stuck on version 0.94.3, the last one with working fullscreen mode. I tried every update since that and none works.

[xnview]

could you tell me how to reproduce?

[bran-g89]

Fresh install, open XnViewMP, then photos folder, single view, and then fullscreen mode.
The first image is displayed correctly, but the next ones don't. The only thing I see is a bar with a portion of the next photo on the top of the screen, and also under the on screen playback controls.
This happens in both cases, when I use the arrow keys on the keyboard and also with the on screen playback controls.
If I move the mouse to the top of the screen to show me the thumbnails bar, the hidden image underneath suddenly appears.

I think it might be something with Qt, because the last working version for me was 0.94.3, but when the change to Qt 5.12.6 was made in XnViewMP version 0.95, every single release beginning with 0.95 up to 0.97 has this bug on my system.

[xnview]

i can't reproduce on Catalina, i have no more High Sierra to test

[bran-g89]

Could there be some incompatibility with High Sierra and the newer Qt versions?

[xnview]

Could there be some incompatibility with High Sierra and the newer Qt versions?

i don't know, in fullscreen from browser same issue?

[bran-g89]

No, it seems to work just fine when I go from browser directly to full screen.