This is my first time on the forum, but i have been using Blocs for a number of years.
I’m pretty sure i have solved the October CMS export problem, where the site would not show once the theme has been activated. I have tried it on two simple and one more complex sites and it has worked each time.
It appears to be really simple.
The default.htm layout file does not include closing script tags.
This can be edited directly in the October CMS backend. Go to CMS, then Layouts on the left, then select default.htm to edit.
The after screenshot follows.
Hopefully the image above have uploaded correctly. Let me know if this helps, or not. Fingers crossed.
(PS, this is with all export options unticked, just incase that makes any difference).