Factorio Forums

Hello,
Game slows down when hovering over any crafts with "too complex to calculate" in any crafting machine. There is no slow downs looking at crafts in player menu.

Using all of Pyanodons and the creative mod.

Thanks for the report however that's not a bug. The alternative is the game crashes due to stack overflow. This is done instead so you can keep playing.

You'll want to contact the mod author(s) for that recipe and complain to them.