That may of been my post. The tread separated from the carcass of the tire for me in several places, after less than 500 miles, on three tires. I did ride a bit on gravel trails, but two other types of tires have thousands of miles on the same and are have held up fine.

I have one hard-case I keep as an emergency spare, there's some cracking between the softer grey and stupidly hard black middle layer, it has maybe 100 miles on it.