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DR4018 only responds on second command


 

Setup is a DR4018 connected to a Pi-Sprog running JMRI 4.16. Point motor is Fleischmann.

I have to send each command to throw or close a switch twice for the DR4018 to respond. The red light illuminates on both commands but the motor only switches on the second.

From what I can see with a meter across the output, nothing happens after the first command, I only see a voltage change after the second one, so it's not the point motor lagging.

Interestingly, the first command is "remembered" by the DR4018 if I send other commands... so for instance to throw switch 56 I have to press "throw" twice. If I "throw" 56 once, then "throw" 55 or any other outputs, then "throw" 56 again it responds.

Pretty much a noob with DCC, I think I've managed to factory reset it once and reprogram, but not really played around with setting or reading CVs otherwise.?

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