Not a PSM but, I just mentioned this in another post, the corners of my Montsouris PM started to do this same thing after only 2 months. They examined it and I was granted an exchange but then the new one started to peel too after 3 weeks! I work from home, only have 1 day off, so it stays in the dust bag most of the time. Quite disappointing.
The little holes and peeling of ours looks the same. And I also noticed it more in direct sunlight as well. Here is a pic of what 1 of the corners of mine looked like:
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