[Bug]: Disconnect, then internal server error upon any rejoin attempt, after jumping off end island

[dsniav]

Describe the bug you're experiencing

After jumping off the end island, instead of dying I got disconnected from my multiplayer server with an "internal server error" message. Whenever trying to rejoin I get the same error. I have not tried this with other dimensions.

The version is 1.20.1, though the bug report form won't let me select this. Latest version of the mod, 4.3.

Reproducability

1. Go to end dimension island
2. Jump off it
3. Expect to die and instead get disconnected

Mod up to date

• [X] Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.19

Modloader version

Forge

Logs

https://gist.github.com/roleester/3c342bbea13b50a5771c497eb12f7d36

[dsniav]

I made a mistake, I was using 4.3 on client but 4.2 on the server.