Inventor: Delete component in assembly can end up with a "ghost" reference

By Being Inventive 6 May 2015

Users reported that deleting components in assembly can end up creating "ghost" references. 

This issue is resolved in Inventor 2016, but it only prevents new “ghost” references.

In this article below you can find all information for preventing this situation in older releases and how to clean an affected assembly. 

Special thanks to Dennis Ossadnik for writing the article.