3D Effect sheets never work..

I do not understand, I follow all of Bambu’s guidelines, plate is extra clean, run it at 50% speed, Bambu branded PLA filament, and don’t apply glue. I have yet to get anything to stick to any of the 3d effect surfaces from Bambu, not even my purge lines want to stick. They are brand new sheets too?!

Can someone please tell me what Im doing incorrectly here?