Where you tag along with whatshisface with the lantern around the back of the shipwreck. If you pause the game to the game menu, the game seems to continue to run. Once you return to the game, the character continues to walk ahead a bit further than Manny and Glottis. And if you pause the game once they disappear off the lefthand side of screen, whatever you do, DO NOT PAUSE. This is what causes the glitch where Manny and Glottis are stuck in the left side of the screen and the third character continues walking over to his stop position. Breaking the game. As long as you don't pause Manny and Glottis will walk ahead of the other character as the game intended.

This is what happened to me once and how I solved it.