I have had brand new tac rags do this to me ( Crystal brand )
Also have had a bad batch of tape that had some kind of contaminate on it fish eye too .

Didnt look like the main base had any problems but the stripe did , Or you had some type of contaminate get on it as it was out side and W&G remover just smeared it around instead of cleaning .

The dealership I work at is right under our airport flight line , and I have baby fish eye problems every now and again when a Big Jet lands as they dump fuel and I suck it in through fresh air intake of my booth .


So many possibilities , its sometimes hard to pin point