Changing visual to text mode destroys the code

Hi I’m using the plugin and it works fine, but:

Changing from visual to text mode destroys the code. I’m using the Genesis Framework and put divs around to get it in columns per CSS.

This one:
<div class="one-half">[turbo_widget widget-rest of the code...]</div>

ends up like this:
<div class="one-half"[turbo_widget-rest of the code...]</div>
after changing the visual mode and destroys the layout. But it worked on several pages before. In this case I had to fix the code manually and if used several times on page it’s very annoying.

And it’s not working to re-edit a once pasted widget in visual mode by clicking the icon?

Do you have an idea how to fix this?

Thanks for helping!