Something is causing us to not take damage at all. I believe we figured out the cause.
Everything worked fine for a little while, we took damage at the beginning, and died a few times to hunger while logged out. once we placed out protective barriers, it stopped us from taking damage inside it, like its supposed to, but we still took damage outside the barrier. Now, all of a sudden, none of us three take any damage whatsoever... fall, drowning, puma...