iPhone alarm randomly does not sound when it’s time for it to go off

Just as the title says, a lot of times here lately my alarm will be going off, but there will be no sound. I want to say it sounds like it does this a lot more often when I’m out of town in a hotel room than at home but I think there’s actually been times at home where it’s done the same thing.

I’ve done all that stuff that Apple recommends where you make sure you reboot your phone, make sure you’re running the latest iOS all that stuff, but what causes this? I found on another post here were somebody else said they were having the same problem and somebody replied saying that on their iPhone, they simply just turned off the attention aware features under Face ID passcode settings and their alarm went beck to working normal.

I just went to my Face ID and passcode settings and to my surprise, that attention aware features setting was already turned off so, what else do I do? I need to do something because I can’t keep waking up an hour, hour and a half after my alarm goes off.