Will not cycle - Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel

The fit and finish are good but for whatever reason this barrel will not cycle on my 365XL regardless of what type of ammo, I’ve tried a dozen different rounds and the most I can get is two rounds before I get a failure to feed. I don’t know if it’s the angle of the feed ramp or what. I ended up getting a a True Precision threaded barrel of the same length and it functions perfectly with hollow points or Fnh’s