Solid color block over text box while selecting text
Hey guys,
First time poster here. I'm experiencing this bug quite frequently in Photoshop (latest version): 
There's a solid block (usually gray, but sometimes white (?) or another color) which sticks to my text box when selecting text in it. In order to see the text, I have to zoom in/out, but many times, the block still stays even on some of the other zoom views. Anybody else experience this?
This happens both when I have the Use Graphics Processor checked on and off, so it's probably not a graphics card issue (I hope)?
If somebody can give me a hint on what I could do to help alleviate this issue, I'd be very happy.
OS: Windows 10.
Thank you!