The manual https://mthtrains.com/sites/de...ction/20dl17182i.pdf
Knowing that PS2 is DCS signal polarity sensitive is important. PS3 engines are not DCS signal sensitive. I've never broken down exactly what happens other than the engine has problems responding when a DCS signal polarity is not correct, maybe there is chatter or interference with other engines and the TIU. Point being, the manual covers this and this Premier engine has a polarity switch. So it's possible that got changed or bumped. Again, one possible explanation why this engine cannot be found by a remote/app or added under DCS where other engines work fine?
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