I thought putting a plastic rail joiner on center rail connections would electrically isolate the Atlas O tracks on both sides of the plastic joiner? I have two mains that are star pattern wired (for DCS) each broken into several track blocks. And my two mains are connected via Atlas O No. 5 turnouts at two locations. I have a plastic rail joiner at every single track block start/finish and between the adjoined No. 5 turnouts in both locations where mains connect. But when I power down either main, both mains continue to receive virtually full power (the passenger car lights on the "powered down" main get ever so slightly less bright). I disconnected the Legacy wire that runs to the common returns. No difference. And if I had somehow inadvertently put a main line No. 1 power drop to the main line No. 2 terminal block this wouldn't explain my situation either - the star pattern wiring would mean only that one mis-wired track block would be getting power - not the entire main loop! Electrical stuff is yet again stumping me.... What the heck did I do wrong now? Thanks. Peter
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