Hi Megan,
Apologies for the late reply, I've been on vacation since mid-december. We have not tested the webObject component with the Adapt authoring tool, only in the classic Framework. However, if you're seeing the blue background this could suggest that the authoring tool is seeing the component, it may just be a problem with the link to the EA content.
On the component, note the line:
"data": "course/en/embed/filename.html",
did you make sure you have your EA files in the corresponding location
Niall