Indeed, quantum mechanics has been troubling to many - Einstein among them. But on the other hand, space/time which was sensible to Einstein is still a stumbling block to many (if not most.)
Thank you. I don't know if or which scientists have any problem in this regard, but it seems to me that it is much easier to deal with this "material" ;-) if we just let bygones be bygones and quanta be quanta and not try to demand that they fit any preexisting notion. Seems to me that this frees up the "observer" to consider what really happens, also to make sensible postulates and propositions based upon it all.