Unfortunately it happened on my first proper skirmish with it. All seemed fine when I tested it out in the garden, but I only used the mag it came with. I’ve had new mags sat in their packaging until only recently and I then found out these started to misfeed.
I have 4 mags total, the one it came with in the box seemed to feed the best, the rest were hit & miss, the one in the video in particular was the worst.
So either I’ve been unlucky with my mags, my hop feed tube is slightly too short or my mag catch is not seating the mags in far enough. I’d guess the latter.