I am at my wit's end with the 767 and the Top of Descent Bug.

I do the trick, and indeed the proper altitude (and speed!) shows for a moment, then switches back to no TD. I have tried waiting until I hit erase, changing waypoints... nothing works. What is really frustrating is that I can see the right values, but only for a second. And we're back to cruise just before the airport.

What a shame such an otherwise nice airplane is plagued with such a frustrating flaw.