Its probably something I did, such as cleaning, but I’ve had them eat hopper babies. I lost 6 ASF tonight due to a cage cleaning. I hate for them to live in soiled bedding but at this point I don’t think I will clean anymore until I remove the babies. I’ve lost more litters than I care to mention due to this, ASF and mice. They always have food and water so I can only assume it’s messing with them and them not feeling safe.
I wish you better luck than me in your start!