Description of the issue:

Had a report posted on the SevTech Tracker: DarkPacks/SevTech-Ages#2637

I don't have access to a game today to confirm myself but I've seen the crash before on a few streamers using the pack. So it's partially confirmed I guess? But this could already be fixed in later versions. Just wanted to put this up so your aware and if it's fixed then I can tag it as fixed in next update ^_^

Crashlog:

https://gist.github.com/ChAyLom/36045162efd3d8d5c91c4143b72eae7f

Versions & Modlist

I.E: 0.12-82
Forge: 14.23.3.2679

Are there any ore veins in the nether (where this happened according to the SevTech issue) in SevTech?

Sorry for the delay in responding a new report came in and made me re-look the issue.

OW Ores no. But nether quartz and standard TiCon generation are normal. Along with the Vanilla Nether Biomes (Which are rare use the normal generation) but most of the nether is generated but NEX. Which could be causing the issue. But that has it's own Nether Quartz handling/generation. So maybe?