They posted a 10 second clip of the Master Sword being chewed what looks like Metal Mites that got loose: https://disney.fandom.com/wiki/Attack_of_the_Metal_Mites and the fans are absolutely doing a blow job over it turning that 10 second clip into a 10 min theory video on YT. Ironically on GameFaqs (the only Nintendo message board left) somehow they missed the memo and it's mostly stupid poll threads.
there doesn't seem to be anything here