Grants Management - Manage Collaborators

When attempting to use the installed package's "Manage Collaborators" component, the button works to invite and i can successfully get the email out, but the url that is generated always leads to an invalid page, with an "invalid url" error message.  Is this a known issue and is there any way to fix this or do I have to rely on custom development?  Since this is a managed package, there really is no way for me to modify the url.  Anyone with some insight on this would be greatly appreciated.