I don’t know if this was intended or not, but it seems that Engineer Jump Shot kinda “sticks” to the ground now, you slide along rather than arc like you used to. This means you can’t jump over certain walls and across gaps like you used to be able to, cliffs especially make you drop like a stone, rather than being able to cross the gap.
Took some shots to demonstrate: http://imgur.com/a/YdATK