I am experiencing a crash, while exploring.

https://bytebin.lucko.me/5BrwlTxgEh

Huh, I wasn't aware you could get a concurrent modification exception there. Should be an easy fix; I'll have an update today or tomorrow.

About how often would this crash occur?

I dont know, appeared one time while testing my modpack, i did post it directly here.

Really looking forward for this update, want to include it!!!

Sure. I'll probably bundle some more default configs in with the fix once I get it working, and release it soon enough.

Also are you considering making this work in nether and end also?

It should already work in the nether or end. In fact, it can work in any dimension if the configs are added.

The default config should already add, for instance, basalt and blackstone nether quartz ore.

I am experiencing a crash, while exploring.

https://bytebin.lucko.me/5BrwlTxgEh

Is also happening while idling.

Cool. It should be fixed once I release the new update. Was the crash log the same for the idling crash?