Broken MMR. Need help

Captured with Lightshot This is my match history and op gg mmr. Im getting +12/13 lp and loosing 26 or more and i cant understand why. Im diamond 3 and i have climbed all the way from silver and this never happened to me before. Thoughts?

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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