"ghost images"

[Katalyst777]

Do you have the latest program update?

http://www.homedesignersoftware.com/support/updates.html

The update notes indicate that the .6 update should take care of this.

"Fixed an issue that prevented all auto deck framing from being deleted when it should."

If you have the latest program update, then you should be able to draw in a new, slightly larger enclosed deck around that area, and delete it to have the extra stray deck framing go with it.