We are investigating using Marketplace for a future project. We have Upfront Builder installed and no other plugins. Create a mock product, view the product, click Upfront to add in the default footer / CTA regions we would use on all other pages, save and the site breaks.
The message flags up, Published but then a grey block appears on the page, the rest of the page is greyed out, as per the screenshot attached. Nothing can be clicked - the whole page is now broken. Refresh the url - no changes have been saved. No way to style the product and save. Is there a problem with Marketplace breaking Upfront and is there a fix?