Bungwa has a very dry mouth and I only managed to get a very tiny white patch on the test card but it was still sufficient to do the test with that. It only turns white when it's dry - the instructions are quite explicit. Of course as Pat says it could be a bad test form.
Welcome and kudos to you for helping with rescues! It sounds like Kowboy was a great introuction to the breed. I'm sorry for your loss of him and Indy. this is a great place to share and keep memories alive. I'll keep my fingers crossed for a speedy relocation back to your family in CA!