Official comment
@Stephen > I've moved your post as you did not read the MIDI Maps forum rules:
Do not post requests for maps or any other topics in this forum, it is for MIDI maps only. Any user not adhering to these rules will have their post(s) removed.
To answer your question, you likely have an issue with another MIDI signal overriding the PLAY/CUE button. Either consult the owner's manual for your controller, contact Denon to provide additional information, or simply use a MIDI monitoring application to find the specific MIDI value required for that button and enter it manually.

