Have you found any info on this same problem with the 9mm? I have the 9 and as such, this is a concerning issue to me. especially as i got my 9 before the 45s came out and they were obviously unaware of the problem when they built the 45s.
How many rounds/dry fires do you have on the gun? Mine has just under 1000 rnds through it and probably as many dry fires some with snap caps and some with out.