I just ran an Aldurwood nightmare dungeon, finished it and had the unique gloves Fists of Fate drop as well as another legendary. I returned to town as my bags were full and when taking the return portal was disconnected due to an update.
Upon logging back in; the return portal was gone (makes sense), but the drops are also just gone when they should be sent to stash with the whole “missed legendaries are sent to stash” system.