Had this same issue a few months back. New tire and tube installed in Jan. Failed in August. Checked for stickers and/or residue, nothing. Heat should not have been any factor as rolled out. Taxi in and noticed tire going down when putting away.

About those stickers in tires...

Page 16 describes exactly the damage I saw and the pictures match.

https://www.goodyearaviation.com/res...-care-2020.pdf