Health stuck at 0 after admin tools toggle

1.207.021

Started new dedicated server

Alt+F10 - Enabled creative mode tools, invulnerability, and untargetable

Tested some things, then disabled all admin tools

Used a cryo chamber - Full health

Restarted server

Health set to 0. Can't heal or die.

I noticed youtuber ShiftyShadowTV was also experiencing this in a video, so I made a comment, to which he replied, "I think my health is like that because the world I was building in is set to survival, but I had admin tools on. So I wouldn't die even I reach 0 HP. That said, I shouldn't have been taking damage either. I think the new radiation damage was reducing my hp even though I should have been invulnerable. Maybe you had something similar happening. I also have not been able to reset my HP in that world since then. I'm always at zero, and I never die, even without admin tools. Hopefully something they will patch."

It's not my assumption that the radiation mechanic causes this issue, since I went from 100 to 0 after a restart with less than a minute of being disconnected. Also, the server was set to pause with no one on at the time, so from the simulation's point of view virtually no time had passed.