Weird UPC relist glitch?

Tonight, for the first time, I got an email from Ebay saying that 4 of my listings (which are GTC) were not relisted as they were missing UPC, Brand, or MPN.

 

I went over each listing and everything is in there, so I can't understand it.

I updated all my listings last year when the UPC changes came in and have had no issues until now.

 

Anyone else experience this glitch?

 

From memory, wasn't there a way you could bulk check all your listings to see if there were any issues?