Platformer won't jump

Suddently all of my new projects wont jump, I'm selecting the empty project template, I add a platformer sprite and it won't jump, this is FROM scratch, however, if i open an older project, they all still jump, what do I do omg lol

Can you post a CAPX file?

what do I do omg lol

What should we do with no info at all , omg , lol ?

Is your sprite standing on a platform with solid behavior?

If the object is on the bottom of the screen and not on a solid behavior, it will fall infinitely into the outside of the screen(margin). But since you put a behavior of "Bound to layout" to the Hero, he will still try to fall into the margin, but he can't since he is bound to the layout. To jump, place a solid underneath your Hero.

By the way, this topic's number is 66699. Freakish...