I have encountered this a few times on my devices. What I have done as a temporary fix, and assuming you have IR capability, is to send that one command as an IR command instead.
I thought of that, but decided it wasn't worth it. If I want to Open/Close the tray, it means I want to put in a disk or take it out. That means I need to be in front of the unit....so I can push the button on the device. I would probably do that anyway because I left the remote on the couch .