As pointed out - Turn off the "auto generate track labels" feature. A long time source of confusion.
But back to point, how did the inserted midi track work out for you? As you can tell, not many folks use this feature but I suspect it can be a cool idea.
Dan, yes, if "auto generate" turned off then it gives the default (legacy) track names which unfortunately simply highlights another issue that needs attention

I can get it to work '
sometimes' but I cannot find what enables/prevents this from working always.
Because I've had it working previously on many songs quite successfully tells me this is very possible, as you can see from posts above. Just
sometimes it doesn't work. If only I could have that code in a debugger in a development environment... The PGM team could find this easily, I'm sure.