I've got an odd problem with an ESU decoder in an Intermountain SD40-2. I did a factory reset by setting CV 8 to 8 to start with, then used JMRI to set the decoder address. I read the sheet with the sound levels, and decided to fire up the locomotive to hear the sound level to start adjusting things.
I selected the loco, and I can turn the headlight on and off, but the loco does not respond to any of the other function buttons on the Power cab. The CV's still read on both the power cab and JMRI, but beyond the headlight it wont do anything.
I tried another factory reset, and I still have the same issue. I'm guessing some CV is messed up, since the decoder still reads CV's and I can still select the loco and the headlight works, but nothing else seems to work.