We recently set up specific names for various layers in our course slide master. When inserting a new slide into our course the layer names to do carry over, they default to the layer object type.
For example, the Master slide for a "Title & Content" slide has the layers named as Slide Title, Topic Title, Content. When you insert a new Title & Content slide in the course those layers show up as Text Box 1, Text Box 2, Text Box 3.
Is this Storyline's default behavior or an error?