@Qrylor, Thanks for the bug report, I applied a fix in version 1.1.4 for the crash.
As for the 6x craft multiplier, I discussed a bit with the Seablock community, and it seems to be an acceptable compromise. The logic is that players shouldn't apply this mod until they reach the mid game when modules can cause the over-production bug.
Early game, the mod forces some basic recipes such as green circuits & uncoiling to work in large multiples, which may be inconvenient when resources are scarce.
Late game, most players have malls with a stack of almost every item, so producing items in large groups shouldn't have a significant impact.
Cheers.