Rasa 2.0 Forms does not validate extracted slots and asks the next slot

I’m not sure what you mean, that sounds like the issue I was talking about? The PR submitted that you linked to did fix the issue for our bots. As I asked in the other thread, it would be great if you can open a new post with all the details related to your issue, since that thread has gotten confusing, with other peoples issues, and also the data being in various different forum posts.