Ranked games keep crashing while winning

Hi everyone, this is the second time I experienced a crash issue this week. I am playing a ranked game, I am much better position than my opponent, then suddenly the game crashes and I find myself on my Windows Desktop without any error message/code.

  1. Do you know what might be the reason for this issue?
  2. Ranked system match decision is terrible for this kind of drops, how can the system give me “Defeat” while I am so much ahead, they should look at the stats and game point, and at least give “0” elo instead of “-16”. I had “-64” elo impact because of these two drops this week, and this is huge!