GT 5.09.31
IC2 2.2.827

Updating from 1.6.02 to 1.6.05 causes a crash when generating a new singleplayer world.

https://pastebin.com/GypG6Xmz

It's some kind of conflict with Chisel (2.9.5.11). I get this crash playing with just GT++, its dependencies, and Chisel.

https://pastebin.com/mUYav6ST

GT++ Does NOT touch worldgen.
Its another mod at fault.

I tried setting to zero all the values for the types of rock in the chisel config so that there should be no modded worldgen, but the crash still occurs. Disabling the bonus chest changes the crash log to this:

https://pastebin.com/tgMMXLgj

[draknyte1/GTplusplus] Issue opened: #139 Crash when break any block on existing world [1.6.05]

most likely same issue

Thanks!