This problem is continuing so thought I should clarify the problem as no one has commented here.?
in summary I have:
Dr5000 controlling the accessory bus which is just for servo controlled points with DR4024 and some Peco SmartSwitches.?
Z21 controls main track and feedbacks.?
A loco passing over points will sometimes cause other servos on the same 4024 modules to move. This only occurs with one loco and only on ekectrifrog points. Frogs are controlled by 4024 via relays.?
continuity testing shows no continuity between the track bus and the accessory bus.?
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Dave, Portland
Church Hope Model Railway
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Dave