Images in snippets are not being checked in RoboSource

I have a project where a colleague is not getting the images I place in snippets.  I went and looked at SourceControl and the images are not there.  All of my other files are there.  If i click on a file locally that is missing from my colleague's computer, the "Get Latest Version" grays out.  This is telling me that it is missing from version control.  Any ideas why an image in my baggage folder is not in source control?  Do I need to manually drag them to source control?  Seems odd that only images used in .hts files are missing.