So throughout the history of my project, I at time have made objects prefabs only to realize they shouldn't or didn't need to be. Then using the built-in unity "BREAK PREFAB INSTANCE" option altered them so they were scene-dependent objects only. Then deleted the pre-fab from my files. However, I've noticed that my Playmaker Error Checking is still reporting errors for the Pre-fab version of that object despite no pre-fab object existing what-so-ever. Why is this happening and how do I clean it up?