On several occasions that rarely happen, cutting power shortly after powering up, so that the supercap can't charge up, apparenly causes the ID# in the loco to get scrambled. Simply delete loco from one of your remotes and then re-add it. This will reset the ID# in the loco, and other remotes will never know this happened.
A scenario: A car on a train is derailed, but not shorting. I may have turned off power to that block to keep layout running, and then closed down the layout, forgetting to re-rail the car. Or, while layout is off, tiny fingers
cause a derailment. I leave layout a few days; supercaps drain. I power up the layout and the block, hit startup, and start train moving, all within a few seconds. Derailed car shorts. Breaker opens. When derailment fixed and breaker reset, loco can't be accessed. Apply the cure above... It works.
I also had this happen once with a PS2 loco with a battery that had been idle for weeks, with a 12-year old recently deceased battery.
All in all, given that having 27 DCS locos, some don't get frequent use, I'm glad I switched all PS2s to supercaps.
