Not really a bug but something but more of an annoyance. I don't like the auto-sell resources because it sells off items needed for a recipe even though it says it shouldn't. I think it only does this when you have the recipe unlocked though.

for example, I have like 3k copper bars ready to go. I know I need them for Copper Wire but I don't have copper wire unlocked. Auto-sell went and sold all my copper because it thought I didn't need it anymore. It's unfortunate because I would like to leave this feature on but I can't trust it to not sell off stuff that will come later down the line

Autosell is useful for battles & challenges
Not for idle levels