I was just exploring in 0.2.41 in the nether and placed down a waystone to get back to the other one i'd placed in the spawn chunks and when i teleported to it, minecraft came to a standstill and gave me a page saying that minecraft ran out of memory and that one of the mods caught it and managed to send me to the main menu instead of crashing to save my world. When trying to reload the world I'm getting the same standstill and no progress on loading.

https://paste.ee/p/vFkK9 here is the log

As you can see there was a period of time after the first "preparing spawn area" message of trying to reload the world where there was nothing logged, that was when it was using up a serious chunk of memory. then there was the [13:44:24] [IO-Worker-401/ERROR]: Caught exception in thread Thread[IO-Worker-401,8,SERVER] java.lang.OutOfMemoryError: Java heap space error and the same 'preparing spawn area: 0%' message spammed afterwards up to a dozen times a second. this time had no lag whatsoever and eventually the log just stopped, and the game wouldn't even close from me clicking the close button on the window and I had to kill the instance via multimc

updating to the newest should fix this, let me know