Sure. First problem (that I'm aware of) appears by Ma >> 1. There is no possibility of reaching CL max on dynamic altitude. The biggest reason of it is fast build up of a drag (while increasing AoA) which prohibits exploiting bigger AoA. In other words you may pull a stick but everything you get is loss of speed. Independently there may be other reasons of stall at big Ma numbers. Due to a gradually decreasing directional stability (on dynamic altitude while increasing Ma number), t