Not charging when connected to power

Hi!

Recently my Mac has not been charging, even though it is plugged in.

I first noticed it behaving weird like this when I unplugged the charger and it showed that it was connected to power. I thought that was weird so I restarted it. But after that it did not take charge any more. The battery condition is shown as "Normal". I am also unable to update it (I am on Monterey 12.3) to 12.3.1 because it wants to be connected to power.

I even ran Apple Diagnostics on it, much to my surprise it said the Mac had...no problems.

I have tried these things:

• An attempt at resetting the SMC
• Many restarts
• PRAM reset
• Trying another charger
• Booting into Safe Mode
• Turning off battery management

When I tried to reset the SMC for my Mac it just booted up to the login screen even though I used the directions from Apple Support (they were for a T2 Mac, and my Mac has a T2 chip).

Is this USB - C board problem? A logic board problem? Battery? I really hope this is not a logic board issue, I have Xcode projects on it.

Any help would be appreciated!

Update (May 5):

Since the Mac was still under warranty, I sent it in to the repair shop. They said nothing was wrong with the computer (it powered on and charged for them) and sent me the computer with a new charger. However, when the computer was having the issue I tried 2 different chargers with no success. So I got the computer back Tuesday (May 3) and it has worked perfectly. I wonder if draining the battery down to 0% somehow reset the SMC.