I think Auto-Chisel is crashing on sound. It isn't the normal ticking sound, I think. Two times a diamond chisel broke and the game has crashed. However, this is the third time it has crashed and only once did it produce a crash log. The first time - the world kicked me to main menu. Second time - world kicked me to main menu & crashed. Third time - world stop responding as a diamond chisel broke. Was able to get the game log on the third instance. Crash log from second instance.

Here is the game log - https://pastebin.com/X2f01ZUP.
Here is the one crash log - https://pastebin.com/9PVdktHG

I get exactly the same log, everytime a chisel runs out and it trys to chisel blocks without a chisel i think

Users having this on SevTech Ages now DarkPacks/SevTech-Ages#2471 Had a few streamers with the same issue when they progressed. Is their an ETA on this @tterrag1098 ?

I get the audio crash also when the autochisel is running, and ONLY when the autochisel is running. https://pastebin.com/pLfXX9VR

Fixed via 3d38b96