What do you think?? faulty??

Store didn’t have any pick dye tests and I’ve never seen this before. Obviously need to test again but do you think this one is faulty? There’s a beginning of another blue line at the top of the window. Showed up very early but difficult to get a decent picture. Only held it up to the light so that I could get a picture it show the blue dye that is in the top of the other window.