Update!!
After several different things. A friend told me to stretch the buffer spring. Told me the spring wasn't holding the BCG forward causing the round to not seat properly. Haven't had a problem since.
Yes I have 3 original glock magazine. Actually dropped and broke sgm magazine. So I've only ran glock mags. Last trip to the range only used magtech. Seems to run fine after a good cleaning but towards the end starts acting up again. Love the gun wish I could figure out why it ftf.
I contacted freedom ordnance and like everyone else said customer service was great. They told me that it was a magazine malfunction and sent it back with a new sgm magazine. Runs good but I've had same problem with ftf after emptying a magazine and replacing it released the bolt and nothing...
I had some trouble with some Winchesters and blazer brass. With my fx-9 pistol. Failure to feed. Left some creases on the casing. It really liked the fiocchi 115 grain. I was really upset because i only had the blazer brass and it would not cooperate. Love this gun.