Hey Zane,
The ajax response on your site looks like this:
<h6 class="auto-anchor-start-marker" style="display:none"></h6><h5 class="auto-anchor-start-marker" style="display:none"></h5><h4 class="auto-anchor-start-marker" style="display:none"></h4><h3 class="auto-anchor-start-marker" style="display:none"></h3><h2 class="auto-anchor-start-marker" style="display:none"></h2><h1 class="auto-anchor-start-marker" style="display:none"></h1>{"html":"saved","error":false}<h1 class="auto-anchor-stop-marker" style="display:none"></h1><h2 class="auto-anchor-stop-marker" style="display:none"></h2><h3 class="auto-anchor-stop-marker" style="display:none"></h3><h4 class="auto-anchor-stop-marker" style="display:none"></h4><h5 class="auto-anchor-stop-marker" style="display:none"></h5><h6 class="auto-anchor-stop-marker" style="display:none"></h6>
You have a plugin or something else that modifies it. All those divs are not coming from the component and that is why it is braking...
This is the correct response
{"html":"saved","error":false}
As you can see - the mail was saved, but because you have all those divs around it is not doing what it has to do in the frontend.
Regards,
Daniel