Pre Mature Slide Lock Back CZ P10S

[JMCZ]

I having issues with my P10S locking back in the middle of the magazine during fire with rounds still left in magazine. I have shot it left handed and had another shooter confirm it as well. It happens about once in every 50-100 rounds. The spring does not appear to be any weaker than my other handguns. CZ customer service had no real ideas and was little help. Has anyone else had this issue? Any thoughts from anyone on how to fix this?