>> No... the issue still exists with disappearing icons, with manually patched fvwm source code with "xthread_fix.patch",
>> So, it is a problem with this patch. without it, using original fvwm source code icons are displaying OK, but FVWM is crashing sometimes,
>> with applying this patch -- FVWM is not crashing but icons disappears after (fullscreen change/restart).
It's not a dependency issue too, it's a patch issue, for some reason it affects somehow redrawing FVWM icons on restart/fullscreen change,
Also, it's not a fvwm configuration issue too, I'm using the same FVWM clean configuration for years on several systems
( may be downloaded here --- https://github.com/111LUX/FVWM )
And this issue only appeared since Debian 12. So it's a problem with this patch -- "xthread_fix.patch" -- 100%
