no ability to dump the memory from blocks...
Permalinkhad to remake the container for that page. or the other option is to remake the page. unfortunate when the page is fully built...

what happened:
*someone tried to put an app (advanced slider) into a block.
*it failed
*it left behind a <div> with an id to advanced slider block css which could then NOT be seen in "content", "image", "html" or "advanced slider" to either edit or remove
*the only place you could see the div was in browser >view source
so really no screenshot to show