I am convinced that there is something very wrong with the controls.
Maybe 20% of the time, when pressing the button to jump, X won't jump. I've sat here trying to figure if there's some sort of recovery period after a jump and I just have bad timing, but as far as I can tell there's no consistency to it, and sometimes pressing buttons just results in ♥♥♥♥ing nothing.
EDIT 2: Also wanted to clarify, that I found this issue in X1, X2, and X3. It's present across all three games, at all times. It's not location or game-specific.
I haven't touched the PS1 or PS2 games in the series yet, but I've heard that they might be free of the input issues. I have yet to play them, as when I ran into this issue in X3, I immediately dropped the game after recording my findings. I'll post one last update if that's the case. I'm not trying to misrepresent or slander the product; I was really looking forward to this collection, and I'd still like to see it patched and made playable.