Good grief.
I purchased a large bag of Canidae on June 8th. I don't know what was wrong with it, but Star absolutely refused to eat any of it. (She & Sherman devourved the first bag I bought) I finally gave up & got her old brand for her. It's not as high quality, but she eats it. Jack's been eating the Canidae and doesn't seem any worse for it. But I will keep an eye out for more reports.