N Scale Kato SD80MAC w/ NCE Decoder - Lights stopped working Programming issue?

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Hey guys I'm new to this forum so hello to everyone. I have a Kato SD80MAC with an NCE drop in decoder. I bought this used but I had it working briefly and then had to do a recovery from my PowerCab to get it working again. Now the engine works however the headlights don't in either direction when I hit 0 or the headlight button. The lights do flicker when I take the engine on and off the track and did flash every time I went through the program sequence to reprogram it so I know the lights are good. Any idea why they wouldn't be working anymore? Is there something in the programming I can change to get them working again? I am still very new to DCC. thanks a lot!

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