I used a teleposer from blood magic to teleport a Soul Brazier from thaumic tinkering to the end in Delta Server. This crashed the server and seems to have done something to the end dimension. When I try to use my /home that brings me in to the end i get a message saying "Error: Invalid world." which did not happen when i used my home before this. I then tried to use the teleposer to get to the end (by standing on it and pressing a button), this caused another crash so I've stopped touching it.
The teleposer in question is at x 262, y 72, z 2662 (overworld)
End teleposer coords are x 17817, y 62, z 2084 (end)
9 hours later, i used my /home to enter the end (worked fine), went to the teleposer in the end (had the soul brazier on it), broke the soul brazier, and the server immeditiately crashed
I investigated just before normal server restart: once somebody has entered the end dimension and it is loaded, then /home works normally. I can enter the chunk that the teleposer+soul brazier is in with no problems
breaking the teleposer is fine, breaking the soul brazier immediately causes the server to crash.