Same here. I do only Aqua Shadow mission for stone and blue medals and 80 stam Secret Garden for LC and Manyu. But yea, unlike other RB event, I can't 6 lvl80-90 blue bosses in a row. I need 2 or 3 refresh to use all my raid point. But I don't think it's an actual issue. It's just a bit annoying when you lack time to wait for the RB refresh.