We are also having similar problems. It doesn't seem our transitions in our Model are working. When we set up normal trigger campaigns with the exact same parameters as the Model supposedly is using, those campaigns work while most of the time the Model ones do nothing. It is so frustrating!
I don't know what to do. The logical explanation would be that our trigger campaigns in the Model aren't set up right, but that doesn't seem to be the case since normal campaigns that are identical to the ones we put in the Model actually work.
Any ideas are more than welcome. I feel stuck and don't know how to move forward.