This mod is an expansion for Warptorio 2. DON'T PANIC! Adds missions on the planets you visit, required to unlock technologies. Also adds some big Bosses, more planets, and a loyal robotic companion.
Think Mobile Factory ended up running into the same problem a week or two after I posted this, but from someone else. That deep copy without defining next upgrade after loading a mod that gives it "next upgrade" or some stuff. Talk to Honktown for details. I forgot.
I'd have to look further into this to give a definitive answer, i didn't check which mod is actually setting the next upgrade. Whoever is doing that is causing the problem.
Well, Factorio Plus Plus was the culprit in my case. I think it was the culprit in Honktown's case too, but it was also an issue where he deep copied the mining drill or something, but his mod loaded after factorio plus plus which gave mining drill a next upgrade, and... was weird. The factorio mod post I posted above is how it was resolved in my case. Honktown I think took to resolving the error on his end. Pastebin of Discord conversation: https://pastebin.com/LVLCD2ki
