Macbook pro sleeping early than its setting

My 2019 macbook pro is sleeping after just 1 minute when set to 20. It had been working as expected (20 min) until I temporarily set it to just 1 minute as I tried to trouble shoot a different problem. I set it back to 20 but now it won't stay awake for more than a minute. I have tried changing both the on-battery and the plugged-in setting to various different times, restarted the computer, tried being both on battery and plugged in, but no matter what it always goes to sleep after just 1 minute.

What could be causing it to sleep earlier than the setting? Are there other settings that influence sleep?