Chuck,
The issue only occurs on an operating track which has the uncoupler built in, not on a standard uncouple track. The uncouple feature is wired to an accessory transformer and does not get power from the track transformer. If the track power is off during the rolling by hand test, the problem does not occur. In the opposite scenario with track power on and auxiliary power off, the problem does occur when i hand roll the cars over the operating track. All couplers do not open when rolled in both directions.
I have 8 operating tracks and the problem occurs with only 5 of the 8.
Does that make any sense to you?
It seems odd that this problem only occurs with the California Zephyr cars. I unplugged the wire from the truck that powers the interior lights and it made no difference.
Thanks for all of your help.
