I am guessing based on my experience of applying adhesive parts to body panels,that
the mounting surface was not cleaned/prepped correctly before the clear overlays were installed.
Could also be a temperature problem.Adhesive backed material may have a problem when
installed when its very cold.Could also be the bloke that did the install,touched the edges.
I'd think a body shop could replace these without a problem.The hardest part is getting the old