The projectdoc Toolbox is quite picky when processing property information in a properties table. It assumes that there is only plain text for the property name and the property controls. If an author copies a value from another web page as a property value, this text may contain additional HTML span or div elements. These elements are not rendered, but they are considered to be part of the value definition.

This problems can be manually solved using the Confluence Source Code Editor. The author simply needs to remove the extra HTML elements that have been added.