YouTuber by the name of mrAPchem has recently uploaded a video showing that Sub-Zero has an issue with some of his combos not working when performed by Player 2. Well, it turns out that the issue goes much deeper than that, and the entire cast is possibly affected by this bug.
This is a huge potential issue for both your average players and has massive implications for the competitive community, how much of a disaster would it be if someone lost a tournament just because they got Player 2?
So far, it's not clear what exactly causes this issue, but mrAPchem offers a likely explanation in that two players have different aerial hurtboxes.