I don't think that an Oyster Perpetual Date would have a Triplock, but a Twinlock. Let us just say that you are likely just referring to the crown and stem...
I don't think that there is likely anything wrong with your watch.. It is a mechanical connection and when the stem is pulled out, the pinions and wheels need to physically move into proper position. It frequently takes a bit of a wiggle or a couple of tries to get it into the proper alignment..