Did MMR shift downward?
My MMR in Plat 4 is 1400, which is what Gold 4 used to be. As far back as I can remember Plat was 1800 and Diamond was 2200's. Did everything get shifted downwards when they removed every 5th division? Is your rank truly the rank you were trying to achieve? My MMR is what it should be for S9 Plat 4 as I am being matched vs and with other Gold 1's and Plat 4's, just to rule out personal MMR deflation from losing too much.