I cant progress from Rank 5 to 6. It says finish 2 weekly vendor challenges. I have 1/2 and finished everything I found. But Zavala and Shaxx dont offer bounties anymore so I dont know how to finish this. I already did all the pathfinder and normal vanguard powerful gear rewards. Also finished banshee 8 bounties for the weekly and ghost vendor challenge on pale heart. Does anybody have the same issue or a possible solution to this?