Higher MMR than rank but low LP gain
I lost a bit of matches a little bit ago, and now I've been off and on win streaks, lost my placements though sadly. I won 7 in a row to get to my placements, and only gained like 12 lp each game even though my MMR was higher than my elo. I also have been getting low lp each game even though my MMR is a rank above me. I really don't understand this MMR system at all, I've been reading into it and I understand how it works but now that my MMR is higher I really don't get it.