Had one of my mags end up in a situation like the bottom one in the image. It was a full magazine and all but 4-5 bbs fed and when I pulled it out after I realised my red bb justice wasn't firing out the end I took the magazine out and I noticed it was jammed at the convergence point.
https://imgur.com/zJdkj3Z
It cost me dearly as you can see the tracers stop in the video but my gun keep cycling because the empty mag catch doesn't make it up. I pull it out to check and see it still has bbs left so put it back in but still no red justice. When I inspected it later I realised it was jammed up like the picture.
I have dropped my magazines 3 times ( separate occasions and I don't mark my magazines to know which one took the drops) but I am pretty careful with them usually. I read this can happen if the magazine gets a bend or dent in from dropping so I hope that isn't the case but it's possible.
I'm going to clean the track with cotton buds and rubbing alcohol hoping it's just dirt. Anyone got any other suggestions?