How do I fix platformer sprites going through solid objects?

So I am making a 2D shooter where you choose a political ideology, and kill centrists and other political ideologies. One of the characters is working fine but when you choose other political ideologies (the political ideologies all have the platform behavior) All but the first one clip through an invisible floor with the behavior solid

How do I fix this?

Check origin points and collision polygons, in all animations and animation frames.