Relatively consistent client crashing on 6.15

Don't have any reproduction steps unfortunately as it seems to be completely random.

Tens of times on 6.15 my client has crashed for seemingly no reason, the most recent one being in lobby for a placement game. I remember that there is a hidden system in placements that counts a dodge as a loss so I'm pretty annoyed at it crashing at that time.

If there is some way I can stop this from happening I would be grateful, I have already repaired the client and I am operating on windows 10 if that helps.