I have a gen 1 with no problems
It's far more likely that you'll have a small part break over a 100,000 round service use of a handgun [I've puched two that far, a 9mm Browning GP and a .45 Colt Combat Commander; it's taken 30 years to get that out of the Browning and 25 for the Commander] or have a misfire from a round of factory ammo, so don't sweat it.
I've come to prefer the Glock 17 over the 19, but that's a personal pick based in part over my decades-long preference for full-sized service handguns. And the ability of an individual to fully strip and maintain a Glock put it head and shoulders ahead of most of the other designs out there, and equal to the M1911.
I suspect my next Glock will be a 36. The Glock 30 I had was a bit largish in my hand.
I've seen this problem mentioned on other pistols of this model by other people on other boards. Just beware.