Yes, but there will usually be a kit for early owners to fix/update their games. For example, Spider-Man had a small guide piece changed that went behind Sandman. New ones were sent to early buyers. Metallica LE/Prem had its magnet board redesigned. New boards were sent out. On GB, Slimer's mech was redesigned - although I heard that getting a replacement for that was a bit trickier.

Any quality manufacturer will address issues, and Stern is no different. The new GB pins come out with several different pieces that were not on the initial runs (but were mailed out to the buyers) such as the Ecto Goggles airball deflector, wire-form strengthener, etc. Pins later in the runs are usually more hardened.

Yes, a good example of this would be the Iron Monger design on IM. They changed it during the initial run. Also the Silmer Mech on GB.

there was a fix for the hulk figure on avengers too

Any info on this would be appreciated. What was changed?

Said no Pinsider ever

While they do fix some items, they sometimes don't despite saying they are working on a solution, like what happened with the GoT Pre/LE elevator diverter.

The worst part about it was that eventually, the fix that came was a code fix that essentially shut off the feature, and any questions or comments went completely unanswered (to this day). What pisses me off about Stern is they refuse to communicate anything on the issue, at all.

I don't expect perfection -- but how hard would it be to say, "We analyzed the problem, and unfortunately we cannot design a reasonable solution as distributable kit." (Of course, that would've been BS in the GoT case, because plenty of people, myself included, were able to fix the issue with a little work.)