Unstable terrain with a lot of lava pits seems to result in many of these crashes.

1. What did you expect to happen?
   Keep playing
2. What actually happened instead (i.e. what was the bug)
   Crash
   "java.lang.StackOverflowError: Exception while updating neighbours"
3. If it was a crash, upload the full log file (latest.log)
   2019-10-14-4.log

To Reproduce
Not reproducible with vanilla TFC on same terrain.
Worley's 1.5.1 + garbage modpack + TFC build 85.
Locations are in the log.

Does not reoccur immediately when restarted.

Seems to be the same as #457