I've been compiling and debugging my Add-In (a toolbar with a few menus, custom commands, custom selection tool and a context shortcut menu) with no issues until suddenly the edits and changes I do in Visual Studio are reflected in the Add-In. There are no errors and compile success. I first noticed this when I was wanting to debug but application was ignoring new edits and additions. The Add-In is still there but some commands don't seem to not respond to current changes.
What am I doing wrong?