Man, I don’t know… with that discrete selector you’re either getting inputs from it or you’re not. And to happen just sitting there on auto or even on inspect. I don’t even think you should be able to get an STLD on inspect. Sounds like something wrong with the IOBD. I just recently had a 211 getting a DLFB fault only on access or car top in the down direction. Auto fine, MR inspect fine, so weird. It was the IOBD but had to send to Unitec twice before they gave us a new one. I’d already swapped with another car to be sure I wasn’t missing something. If you want to rule out the selector, put it in inspect, disconnect it and cycle power. If it still happens you know the selector didn’t have anything to do with it.