If the device is yellow there is an alarm. Could you please create a new filter removing all the criteria to get everything?
Maybe we can try something else: could you run this Web API Call to get all the active alarms on your environment:
http://<OC_SERVER>/spectrum/restul/alarms?attr=0x1006e&attr=0x12b4c&attr=0x1321a&attr=0x11f56&attr=0x11fc5&attr=0x11f9b
That will return the full list of active alarms without any filtering issue and we'll see if you have something attached to that model in there.