I have the older model XD 45 probably 2007. It's been a great gun till recently. Lately at the range its had issues feeding. I shoot one round with more in the mag and the second round will not properly feed in the chamber. Looking at the gun after the first round I notice the round indicator "pin" not sure of the name, does not stick out as it should if it were loaded and ready. I notice while looking at the gun from above and at the closed chamber, the rear of the barrel is not seated in the chamber but appears to be lifted or slightly higher, then If I slightly pull the slide rear ward and release that round will be seated and indicator pin protrudes at the rear and it shoots. I have thoroughly cleaned my gun in hopes the problem would be fixed but it hasn't. Any ideas?