DH works fine until I go into the mining dimension, and in there it shows some wrong chunks - but then when I go back to the overworld it's just completely broken.
I've tried fiddling with the multiverse settings, it's at 0.8 right now but there doesn't seem to be much of a difference between 0.0, 0.8, and 1.0.
Disconnecting and reconnecting to the server fixes the mismatching chunks, but then it seems to want to regenerate the LoDs entirely from scratch.