Any load combination that uses the Strength (or Ductility) rule sets should logically have a load factor (and alternate envelope factor) of 1 for the Hyperstatic Loading (regardless of the presence of tendons). RAM Concept provides the warning when this is violated.

The warning usually occurs when you have added load combinations and forgotten to enter the Hyperstatic Loading load factors. To avoid the warning change all load factors (and alternate envelope factors) for the Hyperstatic Loading to 1 for all of the load combinations that utilize the strength or ductility rule sets.