Would you lose faith in your carry pistol after this type of situation or chalk it up to an ammo and/or magazine fluke?
I would just look on it as an opportunity to practice malfunction drills.
BINGO!!!
No gun is impervious to failure. EVERY gun can fail and if shot enough, will likely experience some form of failure. You may have 5,000 rounds at 100% reliability, but that doesn't mean that when you are attacked, and you fire that 5,001st round, it is absolutely going to work (though the odds are certainly in your favor).
Every one of my carry guns functions 100% as far as I have experienced, and I believe the probability that they will work if needed is as close to 100% as possible with any mechanical device. But I still do things like load an empty case into the mag, load a snap cap, out of spec round, etc.. to make sure I know how to handle a malfunction.
The guy who trained me in real practical self defense shooting, actually handed me the first 1911 I had ever shot. It was a Wilson Combat CQB. (yeah, i got spoiled from the get-go). He put a cheap nasty .22 conversion kit in it because he KNEW it would fail, and he banged into my head over and over again that you have to prep for failure.
Now, to answer the OPs question more directly, I would still trust that gun. It has proven likely with your carry load, which is the most important load. If ever there is a time for failures, it's at the range, for all of the reasons mentioned above. You might want to call S&B and read them the lot number off the box. there may be problems with that lot. Sometimes they want the ammo back to run tests on it, and will send you enough ammo to make it worth your time. But as said above, some guns just don't like certain ammo for whatever reason.