New Battlefield 3 PC Bug Prevents You From Finishing The Game

Update: A new bug is found by veteran players who are about to finish the game. It's characterized by inability of your character to jump if you mapped your "jump" control to a different key aside from spacebar (default). Meanwhile, we also receive another key-binding related glitch sent by a player to Battlefield's twitter page.

In case you experienced the same problem, show it in the discussion below.