Reliability problems?
That's the first time I've seen any reference, even a second hand or hearsay reference like yours, to reliability problems with Colt New Agents.
That is, unless their total reliability are causing problems for the long time Colt degraders or to the crowd who insist that reliability is lost when the barrel length falls below 4 1/4".
In my experience and that of every other owner of the gun I've seen who cares to comment the pistol is remarkable for one thing above all of it's other interesting characteristics and that is it's amazing reliability.
My own has now been fired more than 2000 rounds with nary a FTF, FTE, or other stoppage or problem whatsoever. It just shoots, and with crimson trace it shoots to point of aim over and over and over again.