Certain Slabs in RAM Structural System model not imported into Structural Modeler

ThereĀ  are known limitation in the RAM APIs which results in certain slabs not getting imported by Structural Modeler. This happens for concrete slabs with complex openings when the deck is assigned using assignment mode "Whole Floor". The issue can be resolved by deleting the "Whole Floor" deck and using the "Whole Diaphragm" assignment mode.