I had no issues at all. Took it back, they re tinted my entire window for free, and went home. This happens when you open and close your door with the window moving. No big deal really

It happened to my driver's side window a couple of months ago - after 5 years!

It's not caused by shitty installation, it's caused by the adhesive starting to dry up at the edges and the lower corners take most of the abuse because they hit the rubber trim when they are lowered and raised every time the door is opened and closed.

I took a sharp new razor and carefully and cleanly cut off the corner that was separating from the window (I removed as small of a section as I could). So far, no more has separated and you can't really notice the missing corner unless you look hard.

Mine does it on the passenger window. It's barely noticeable.