Connected Phones Report Last Registered time

I've been doing some work to collect a report of phones that have not been registered in the last 90 days.  Starting with the pre-built "Connect Phones Report", I see Last Registered time is a field, however, this does not seem to be collecting data correctly.  The phones I spot checked were all currently registered, and appear to have been registered for some time.

Is this report working for anyone else, or is VNQM collecting this information incorrectly and needs to be addressed with Solarwinds support?