None of my code actually works as it's suppose to. Even if it looks exactly like my teachers. What's happening?

See my code here. Thunkable

The sprite_type_tile are suppose to start moving down the screen, but they don’t. This is the 3rd or 4th time this has happened and my teacher can’t find anything wrong with my code.

Is it possible there’s a problem with my account?

This is a known bug.