Experienced a crash due to stack overflow during loading a (single-player) world after enabling retrogen in configs.
World size is quite substantial (2.7 GB), but seeing loops in stack traces, it might not be an OOM issue.
Same world loads and plays just fine when retrogen is disabled.

Platform: Linux 64-bit, Oracle JDK 1.8.0.144
MC version: 1.12.2
Forge version: 2556
Crash log: crash-2017-11-30_22.40.23-server.txt

EDIT: Sorry, forgot AS version: 1.8.2.

Should be fixed with 1.8.3

https://paste.ee/p/SbLMn

Tried to combat this again now for 1.8.4 .....

Here we try again for 1.8.4....