Apex Mini Pro Issue

When i type the W, R, U, I, and O key, like when i press straight down, they type as if i were to hold them down even though im just pressing it. but like if i press it down on like the side its fine, it only does it when i press straight down, does anyone know what the issue might be, i’ve used compressed air, i’ve used rubbing alcohol, i’ve taken it apart, im out of ideas.