I guess I am not disappointed - which is a shame, I had such high hopes after the complaints raised against the bugs with the Observatory.......
QM and QMC both still exhibit the same bug that was present prior to the changes introduced on the 9th April i.e. they get to the adv quickly, but then spend the rest of time (until there pre-Observatory travel time or "normal travel time" expires) "bouncing" e.g. landing, popping to another landing spot and landing again, over and over again until "normal" travel time has expired. While they are "bouncing" you cannot unload the troops, so they become unusable.
This behaviour is also present on the QM returning from adv i.e. you cannot unload or load troops (I didn't bother checking to see if it is "landing" over and over again). QMC initially (on return) indicates it will come back faster, but then time changes (at some point) to be the normal return time of 1.5hrs.