channel analyzer channel scope displays old buffer data

[PlasmaHH]

Running sdrangel 7.22.4 from openSUSE TW with nvidia graphics I have the problem that the channel scope does not display data properly, it flickers between what seems to be at least two older buffer contents. When I move other windows over it I get ghost images of those windows.

Here is a screenshot that somehow shows whats going on:

All other applications and games using the GPU run fine here.