Rival-S FTE with the included mags

Hi fellow canik nuts. The wife and I picked up our 8th Canik a few weeks back a Rival-S. We got back to the range today after being down with the sickness and ran into some issues. I normally shoot 147gr ammo in everything so loaded that into the Rival and every 2-3 rounds we'd get an FTE where it was barely pulled back at all(maybe an 1/8th of an inch) and stacked right on top of the mag. I had to push down the round at the top of the mag to slide the other round back as I couldn't eject the mag either. At first we thought it was ammo choice(federal AE 147). i grabbed a box of magtech 115s and that fed with the included mags just fine. so I slapped the other mag with 147s into my Mete SFT Pro and my TP9SFx and both FTE the 147s with them. I tried some of the 20rnd mags from the Mete/TP9 with 147s and 200rnds no issues. Anybody else ever run into that where it appears the included Rival mags have some issue? I haven't taken them out yet at home to do a side by side but wanted to see if anybody else has seen that.