Have you updated the drivers for your GPU?
By the way, that’s a node tree to be proud of.
My tree is the same as yours, but perhaps not as neat, and I’ve not had any problem, I even changed all my settings to match yours and no problem. So my first thought from there was GPU.
Are you using Windows?
When Windows updates automatically, I sometimes encounter issues until I update the GPU drivers. Now I do my updates manually so I can easily troubleshoot any issues.
