Versions

Betweenlands version:

3.5.8

Forge version:

14.23.5.2847

Singleplayer or Multiplayer:

Multiplayer, it's off a shockbyte server with no plugins or anything

Installed mods:

Using the modpack MCEternal on version 1.3.5: https://www.curseforge.com/minecraft/modpacks/minecraft-eternal

Description of the problem

After a visit to the betweenlands, whenever I take damage I am in a constant state of dying. i do not actually die but my screen shakes and my hearts are gone. I can't kill myself through /kill or a cactus or a friend hitting me. If I do /heal or somehow heal myself, my hearts are back and my screen stops shaking. But if I take damage again, it reverts back to the issue.

How to reproduce:

1. Visited the sludgeon.
2. Started the maze and found a crypt behind one of the doors
3. Used spectator mode to go back to where i was
4. passed by the sludge menace room
5. went back to survival
6. took damage and the issue started

Pictures:

Oh and my friends tell me that my health is NaN instead of 0 or 20 when I am in the state

Where or from what did you take damage?