One of our users receives two unspecified error messages when he logs in
that says, "Failed to open " and then a GUID.

I tracked one of the GUIDs to one of our bundles by checking the
relationships for the user and device and opening each object. However, I
have been unable to figure out what the other GUID is for. Is there a way
to search for a GUID in ZCC? Or maybe through a command line on the
server or the user's system?

Thank you.