Describe the crash

I was flying around in creative, doing nothing interesting in particular. I didn't pick up or have any items in my inventory

To Reproduce
Steps to reproduce the behavior:

Fly around in creative

Crash Log
https://haste.antti.codes//ejedesihep.mccrash

Info (please complete the following information):

• Modpack Version: 3.0 BETA 2
• Server or Singleplayer: Single
• Version the world was created on: 3.0 BETA 2

Additional context

Going to the main menu and back into the world didn't reproduce the crash

Do you have logs

It seems I did a big oopsie. Sorry, I don't have the logs, I played for some time since the crash, so I'm not sure which log it is.

The closes thing I have is the latest log I BELIEVE is from the same session the game crashed - but I'm not sure: http://www.mediafire.com/file/e1map58cp0wqx4i/latest.log

Update: There is a very good chance this crash was caused by the fact I was running 2 different versions of optifine at once