Update Changes Broke My Game?

For some reason my sprite which is smaller then 1 block now has the physical size of an entire cube block. If not fixed this will force me to entirely redesign my levels. Is there a way to fix this?
Also it seems that now when you change movement direction (left and right) it no longer changes the direction of the player sprite. This also means that my animations are no longer mirrored. This problem could be fixed manually but it would take me a lot of time to redraw sprites and remake the animations backwards. Most people can easily do this but I have very little artistic skill and could barely make a 3 frame animation once.

Here is the game link. It is supposed to be very hard.