If you know how to make your own builds, you can edit the source code such that you comment out or remove lines 197-207 in OpenGL's texturecache.cpp, then enable Read FBO to Memory(CPU) or (GPU), the game won't flicker anymore(yes, even with no frameskipping). We're still looking into how to come up with a proper fix though, so you won't see this little hack as an official fix. 
Also, I wouldn't use such a build as a daily driver; it'll probably cause issues in other games.

Also, I wouldn't use such a build as a daily driver; it'll probably cause issues in other games.
4GHz AMD 3900X, 32GB DDR4 RAM, 6GB Nvidia RTX 2060, Asus Crosshair 7 Hero (Wifi), Linux
How to ask useful questions: https://web.archive.org/web/20110214010944/http://support.microsoft.com/kb/555375
I'm not Dark_Alex, nor do I claim to be. Our nicknames are merely coincidence.
How to ask useful questions: https://web.archive.org/web/20110214010944/http://support.microsoft.com/kb/555375
I'm not Dark_Alex, nor do I claim to be. Our nicknames are merely coincidence.

