In our site, we have added embed(flash) tag from ckeditor toolbar.
Video appears correctly for first update.
However when we update the flash content again, we are not able to load the content in CKeditor.
Please find the attached screenshot: "ckeditor-embed.PNG"
If we remove the embed tag from ckeditor, it works fine.
Current version of ckeditor: version 2.1
we have also checked for version 3.0, still getting the same issue.
Please provide your feedback.