Text disappearing?

Greetings! Got an odd text error...

Whenever another character is on my screen, all forms of text disappear. If I mouse over a skill when I cannot see any text, multiple flashing lines go down the side of my screen.

I have myself on High (Desktop) settings, the game runs smoothly (got 9.3k on the benchmark) so I don't know if it has anything to do with that...

Any assistance is welcomed x-x I've messed around with my resolution from 1920x1080 windowed to full screen of the same resolution.

Thanks x-x