NEW Canik Mete MC9 Problem Found

Not sure if this issue will work its way out with more use, but hopefully it will. If you try to prepare this NEW For 2023 9mm handgun as you would for carry, which is having it loaded to 12 plus 1, it malfunctions in ejecting the 1st empty casing and cannot self load for the 2nd shot, casing the slide to jam. It only happens with the 12 round (flush fit) magazine. As usual, please test your pistol before trusting it for carry. Not sure if there is a flaw with the magazine, or maybe the springs just need to set themselves with more use, but I will try to remember to update you when I am able to put a lot more rounds down range.