I've had this bug for a while in loader, but it's finally annoyed me enough to post for help. Problem is, I don't know which mod is causing it. I'll post a 7z file of my setup. Any help would be appreciated. WARNING: it's a really large file! SDT.7z EDIT: Made file significantly smaller by removing a lot of useless junk and used better compression in case anyone wants to give a go at helping me still.