I have been stuck for over a week at guardian rank 7 as the "Famine Challenge Modifier" wont complete. I have tried it in Solo Ops several time and many more in both Fireteam Ops and Pinnacle Ops. No matter if it I who sets the modifier or someone else it is still bugged. The first time I completed an Op with this modifier, it was a Solo Op and another challange as unlocked for a Guardian Rank 9 challenge. I cannot see which challenge it is as it will not allow me to complete Guardian Rank 8. Please fix this, the grind is painful enough with out progression bugs making it harder!