I had this Problem with the 2.4 Version already. My Iron Ore mines don't produce minerals, nor do they show minerals in their popup. (Yes I know it starts with level 3). I use a lot of other mods, but none than New Industry 2.5.2 that affect industries or industrial production. Only models, tracks, etc. Is there anything you could think of that could have this effect? (limestone production works as advertised). Mineral production is the only thing that doesn't work.
Best!
Andre