Modpack version
1.58

Can the issue be reproduced?
Kinda, unsure whats causing the crash but if I load a backup up and wait the ticking world exception reoccurs.

Logs
https://pastebin.com/ivt6gLXv

Issue
Game crashes from seemingly nothing. Upon reloading the game I have ~5s of play before I get the same crash.

Reverting to a previous save results in the crash occurring at roughly the same amount of time later.

Looks like the builder may have malfunctioned in there. Does the crash still occur if you remove the Deep Dark, and then set the builder up again? I have a feeling this will be hard/impossible to reproduce.

Update.
Deleting the deep dark dimension stops my crashing & re-adding it back in resumes the crashing.
Currently only have an rftools builder in the deep dark quarrying out an area - however it had been running for a few hours prior to this crashing occuring.

And that fixed it?

Yeah, that fixed the crashing.

Sweet!

I ended up having enough time between the crashes to get into the deep dark & grab my builder. The crashes still occurred without the builder present, but once I had the block & got out I deleted the dimension and spawned a new one.