Can't save design

[luesoad]

Hi there,

I am using this project to integrate it in our backend. There I want to load an initial template which the user can edit however he wants. The template then is saved in our database. However, when I edit the template using the rich text editor, these design adjustments are not saved. When I add text or use the edit section on the right, it is saved.
Auto saving appears to work, it is called every time a change is made, but then the database is not updated. I tried calling exportHtml and saveDesign. Do I actually need to call saveDesign when I already save the html and the json in exportHtml?