Have you changed recoil springs? If you have--or if it is a newer spring, it sounds like the slide is actually running too fast. This frequently happens if you go above a factory weight (16lb) spring.
Here is a troubleshooting step...find a Wilson 47D magazine. The follower in the magazine prevents tipping of the round upon feeding. Give one a try, and let us know the results.
Hiding in plain sight...