BlackBars

Greetings, Suddenly my monitor (LG27GN950) had a black bar on the bottom of the screen. This is how it starter. Did some testing and I found out that the bar vanishes instantly if I lower Hz to 120 or 60. My secondary monitor has no issues (caps on 60Hz anyway). I did change DP cables between...

I mean I've tried all these things and it still doesn't show anywhere. It's like I never plugged the drive in at all. But it does have a power light on the stick. The pc doesn't notify when I plug it in. Other flash drives work on all ports except Datastick Pro. The last thing I remember doing...