VLC causing display issues?

[needcoffee]

I have no idea how to describe this, so I've uploaded a video to imgur: https://imgur.com/a/vyYGpuW
If this isn't allowed, please let me know and I'll remove the link.
This started a few weeks ago, and happens every time I try to play a file.
I'm on an Imac, late 2013 model, running Mojave version 10.14.6, Graphics Nvidia GeForce GT 755M 1 GB.
I can play all files with no issue with other programs (IINA, Quicktime).
Any idea what the issue might be?

[iDirk]

Problem is being discussed already several times on this forum.
Unfortunately no solution (yet?).

OS wide graphical issues with latest MacOS update
https://forum.videolan.org/viewtopic.php?f=12&t=150323

Graphic Issue
https://forum.videolan.org/viewtopic.php?f=12&t=150244

VLC Disturbing entire graphic system
https://forum.videolan.org/viewtopic.php?f=12&t=150459

[Le_Tombier]

See https://forum.videolan.org/viewtopic.php?f=12&t=150206
for some possible solutions, with Nvidia web drivers