Playing on Direwolf20 modpack, I placed three chalices within 3 blocks of each other, added lava to one and starlight to another, was getting water to add to the third one when my client crashed. Took the server mods deleting the Chalices to make the zone not crash anyone who entered it.

Server pack, MC version, AS version, crash logs.

Direwolf 1.12(1.1.0) minecraft 1.12.2. As 1.8.2 The rest I'll have to look up when I get home.

2017-11-20-3.log.gz
2017-11-20-2.log.gz
2017-11-20-1.log.gz
2017-11-20-5.log.gz
2017-11-20-4.log.gz

those are the logs from the events. Not sure if they are the right ones

I tried to replicate the bug. here is the world save of it, I think I replicated the bug as I get caught in a loading loop like we did on the server. hope it helps.

New World.zip