Text Box Auto-generation Annoyance

I made a post on this a while back, when I first started playing with Storyline for my job that didn't get any replies. It's gotten to the point that it is excessive and highly annoying.

If I have a small text box, and I delete it, it will generate a full-slide size blank text box afterwards.

In the simple example shown in the image, I have 12 text boxes that wipe in from the left, in time to my presentation. If I select all of these for whatever reason to delete them (lets say I duplicated the slide for the formatting, and now I want to create the next slide), it will delete all 12 text boxes and slap 12 overlapping full-slide text boxes. Which I must click, delete, click, delete, click, delete, click, delete, click, delete, click, delete, click, delete, click, delete, etc.

How can I turn this behavior off?! It is driving me nuts! The best part, is I have not quite nailed down when exactly it does it. Sometimes when deleting some text boxes it doesn't do it. And other times it does.