Convertible top on 2002 Porsche Boxster

When top is put down and then back up, there are two dents in the plastic window. One of each side about 2 inches from the edge of the window on both sides.
This is new, didn't happen before.
Any idea what the problem is?

Asked by for the 2002 Porsche Boxster
go to a highly trained convertible top shop that knows Boxters. this is a touchy issue and can go awry, if ones does not know exactly what to do.
2 answers
Defect.This is the place all Boxster tops seem to crack.It is a design flaw and happens after several years.