Magic Keyboard 13“ back side plastic cover is releasing from keyboard shell

Hi I am using Magic Keyboard for the iPad Pro 11“ model now for years in all usual uses cases and recently bought the iPad Pro 13“ using the magic keyboard 13“ version. After using it in summer on sunny and warm days the back side plastic cover started releasing more and more from keyboard shell and the backside is looking wave-like already.

I see this worse and fear this will continue and untighten from the shell completely.

Anyone experiencing similar behavior?