Right clicking the Ore Cart from Harder Ores while Quark is present causes the game to crash.

Removing Quark solves the issue.

Crashlog: paste.dimdev.org/imegipaneh.mccrash

Draco18s/ReasonableRealism#39

Doesn't appear like an issue on my end, but if you want a temporary bandaid fix you can disable quark's delete items feature.

Thanks, that did stop it from crashing.