Any load combination that uses the Service (and Sustained Service / Max Service) rule sets should logically have a load factor of 1 for the Balance Loading (regardless of the presence of tendons) and a load factor (and alternate envelope factor) of zero for the Hyperstatic Loading. RAM Concept provides the warning when this is violated.

The warning usually occurs when you have added load combinations and forgotten to enter the Balance Loading load factors. To avoid the warning change all load factors for the Balance Loading to 1 for all of the load combinations that utilize the service (sustained service / max service) rule sets.