Screen won't sleep when locked

I’ve done a lot of searching and can’t find any solutions. Running Ubuntu Budgie 18.04.1.

The issue is that I set the screen to go blank after a certain amount of time. No matter what I set there, they do in fact go blank at the right time. However, once the screen goes black, the lock initiates. When that happens the screen comes right back on and never goes off again. Let it sit overnight and the screen was still on when I came back the next day.

Is this normal? Is there anything that can be done to remedy it? Maybe restarting a process or two?

Hi did you solve the problem?
I have too. My desktop freezed after then I restarted my computer. I can able to enter login password and I getting different noise from my hard disk.
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