+1 to above. As the yeast floc you'll lose yeast byte and some iso-alpha-acid'll drop out too. However, that recipe is pretty ambiguous - did you add the amount specified of each hop listed or did you divide the total addition weight by the number of varieties listed (e.g. For your 60min addition did you use 1.4oz. each centennial/warrior or 0.7oz each totaling a 1.4oz addition)? That would make a huge difference, and it is possible to misinterpret a recipe that strange.
I used 1.4oz of one - I was taking it to mean use one hop variety or the other, and actually I didn't have the hops they specified, so I used other varieties with similar alpha acids, with Target hops being used for the high a-a hops. To be honest I kept the weight correct for each addition but just sorta threw in whatever felt right. There's a mix of Cascade, target, hallertau fuggles and mt hood in there.