Tab S (VZW) loses touchscreen sometimes topic

I have a Verizon Tab S 10.5, which has been working fine for months. Now, I'm experiencing random times where the touchscreen is unresponsive. The physical buttons still work, and the bluetooth keyboard still works too.

If I press the power button, then unlock it, the touchscreen works again.

Has anyone else experienced this?

I love the tablet otherwise.

[Q] Phone loses service once it enters standby topic

This started happening out of nowhere today. Never before. Custom 4.4.2 rom, been on it for months so can't blame that. Didn't install any new apps lately.

Restarted it. Nothing has helped