Randomly while generating snowy biomes the server will crash with the following:

java.lang.StackOverflowError: Exception ticking world

This happens infrequently and usually continues to occur whenever the server attempts to load that same area. It also occurs using both 1.11.2 v6 and v7 spigot versions.

Crash report: https://pastebin.com/Cyb42zAC

Edit: Seems this has also been noted on the original Terrain Control: MCTCP#495

https://pastebin.com/7idQvdBy Getting the same(?) error

Also happens in 1.12.2 v4 with normal Forge (14.23.1.2590)

Crash report

Thanks for reporting this, will look at it asap.

Should be fixed as of 1.12.2 v6