Edited text will not save

Hi guys,

The plugin looks great, but I don’t got it working. When I look on frontend everything looks great. I can edit the text. But when I save the changes are not saved on the frontend. When I then click on the text block again then I can see my changed text, but it will not become visible on live version.

Here is a video of what I mean: https://drive.google.com/open?id=1pPJF3-NIyeAzvkPDgrJRF-OXgKqRtNTM

Do you have any idea what is going wrong?

Thanks a lot already for your help!

PS. How does the plugin work together with Gutenberg?

Bye,
Nick