Hi Recently had a very annoying issue. turned my layout on, I use an Elite with DCC Concepts Alpha power and two circuit breakers. kept showing up a short on the main layout. Anyway, after an hour of fault-finding, it all boiled down to a Bachmann class 25 loco. Took it off the track fine, no short, put it on shorted. Changed the decoder and fingers crossed all is fine. My query is, I have about 50 locos of all shapes and sizes always on the track, in sidings and sheds etc. When the layout is in used all the track is powered up. Does having a loco sat on a powered track for long periods without moving cause issues or have I just been unlucky with a duff decoder.