While the magazine does cause the vast majority of feed issues, the condition you refer to can be aggravated/caused by low slide velocity. Low slide velocity can be due to weak recoil springs, lack of lubrication, low power loads (slide doesn't get a running start at the next round) and/or a weak grip that robs the recoiling slide of velocity/travel.

Since the extractor hasn't engaged the round at that point, it doesn't affect the issue.