Not getting LP after a win: Skipping waiting for statistics.
So after an hour and 6-minute game, I had won a ranked match and skipped waiting for stats. I realized that I had not gained lp, in fact, it counted as a loss and re-logged to find the same thing. I also did not receive exp (screenshot). Wasted 36 lp, its sucks being hardstuck diamond 5 :(
I hadn't afked the match also: