golf bears,
What is the date code on your tire????
Looks like Wing answered your question. You can see the right center "RIB" is higher than the outside rib next to it.
The failure tire I had checked temp 15 minutes before it started loosing tread.
First pic shows what a normal tire should look like, second shows separation has started.
Bottom line GY took care of me and 2 years later my replacement tires look great.