What kind of kibble? Maybe he doesn't like it. The first thing I test is when the new food comes in, I try and see if the dog will eat a few pieces dry. Let him smell the bag and see if he keeps going back to it. It took many small bags of kibble to find what Jonas likes. He loves Merrick beef grain free. I was starting to worry until I finally found one. It seemed he didn't like anything LOL.
"You could have the worst day in your life, but when you go home to a German Shepherd it always gets better"