I can't reproduce this issue.

The only thing that I can imagine causing such an issue is when you 
create several Behaviours with the same identifier (Behaviour 
Construction Kit > Behaviour Factory > Specification and Metadata > 
Identifier (right above the Copyright field).

As Remote Buddy identifies Behaviours by their unique identifier 
rather than their name or file name, it'll replace Behaviours with the 
same unique identifier irrespective of their (file) name or contents.

Hope that helps.

Best regards, 
Felix