I don’t understand elemental sketches but your description of the track needing it’s polarity swapped helped. I rewired all the way from the left switch in power district 2 till it met the switch in power district 3.  Thanks.  It’s helped because now both #1 and #3 work with no shorts, etc.  Power District 2 still shorts out as soon as I try to hook it up so I have something else wrong