I think you don't realize the whole problem. You were getting green releases with Korver with patch 3? Well you had to be operating in your own MyLeague with custom settings for game speed. Kyle Korver shot was glitched using the default speed of 50 as were 100's of players. This game speed of 50 is the default speed of online leagues, online ranked and the speed the game comes with. When you changed the game speed certain players became glitch free on patch 3 but it also made other players not achieve "green" release on that same game speed. The issue was a little more complex and 2K never gave the full reason. The issue I see what you are saying is:
In my Myleague I saw no glitch playersYou were operating in your own sandbox without a worry but everyone else playing the game at the default game speed had 100's of releases glitched. I am sure if you used multiple teams out of the box or played anything online you would have realized which players shots were glitched.
For example in the first week of release I knew Melo was glitched, Danny Green Diaw others because I shot hundreds of shots right out of the box on HOF and SS in practice and played tons of games without getting a green release. The glitch wasn't every where but it would be either mid range and beyond or just 3pt's from standing shots