Broken sidebars

I am having a weird problem with the sidebars on some pages on my site breaking, and showing instead as white space.

I’ve tried copying a working page and editing it, and am getting the same problem. I’ve only noticed it on pages with widget content (google maps, google docs or youtube) so far, so I don’t know if it is related to that.

The error I can see when I inspect the page is:

Failed to load resource:blob: https://projectsplinter.com/55dee0f7-e1f6-4eaf-a659-3eb99f2dba44:1 net::ERR_FILE_NOT_FOUND

However this page that is using the same plugin has no errors:
https://projectsplinter.com/youtube-12-monkeys-fan-videos/

• This topic was modified 7 years, 9 months ago by wanderingnettle.

The page I need help with: [log in to see the link]