Why wont my sound notifications stop?!

[Android Central Question]

This only started 2 days ago but it is infuriating and making me consider a factory reset. Regardless on whether silent, vibrate or sound notifications is selected, a notification chime will always play when a notification comes through. This also bypasses do not disturb mode, making me even more confused. Very likely a glitch and interrupts all videos and such making it extremely annoying, and cannot find any other examples of this online either. Please tell me if i am being stupid to fix this.

Samsung S9 running newest OS

 

[methodman89]

And have you cleared the cache partition and rebooted? Anything?

 

[Bloo216]

Having the same issue. Also started a couple of days ago. I keep my phone on Do Not Disturb. I don't know what changed.
It seems to resolve on reboot for a short time. After a while has passed, I get those chimes again.

Stock Pixel 2 running Pie