After decaying from plat1 while afk....

I now seem to be hard stuck in Plat4...and I can see why via opgg. Not exaggerating, match making places me with ALL hardstuck gold players when I am in plat4. As soon as I decay into plat5, I get a typical balanced matchmake. As soon as I re-enter plat4. 100% hardstuck gold teammates.

wtf is this? 4 week long routine.