Pad Help Please

[Fishing]

This pad is a griots pad. I have used this pad on three cars. It was on the third car that the edge of the backing began to peel away. The cars were done about 4 weeks apart from each other. First time I washed the pad I used Dove Dish Soap and warm water. After the second car I used Vinegar and Dove Dish Soap ( worked better for me then the soap and water ). I was on the third panel of the third car when I noticed this starting to happen. I use a compressor hose to clean off the pad after every panel. I am running at speed 5 on the DA. I did not catch any edges, panels or trim on the pads. I have two pads that this has happened to. Both of them Orange pads. I was using the Griots AIO. I am assuming that it is me and that the pads are good. Any idea of what I could be doing wrong ? Also I am very new to car detailing. Thank you for any help .