How do I set a slide as the default question slide in my template?

Hello,

I am updating/rebuilding a template built by someone else that does not function correctly. I am running into an issue with the question slides. I have created a few question slide masters, using the question title and question choice placeholders. 

However, the when I go to insert a question, it puts it on a different master slide  - one that doesn't have the question placeholders. How do I set the question slide as the default question slide so that it will be inserted whenever a question slide is created?

I have created a lot of templates and never had this issue before. 

Thank you!

Carrie Ann