kingdragonfly: What footage appears to show is an Airbus A320 or A321 that isn't really sure where or how high it is, and I'm sure you understand that this can be a rather nasty situation to be in."
They know exactly how high they are. They are getting spurious terrain warnings. The TAWS systems is confused.
It's not nasty but is rather unhelpful. There are ways to deal with it.