Won a comp game but it registered as a loss on the placement screen

no crash no error, saw the victory screen and watched the x appear as if i lost. Whats that about?

There was an error with SR calcuations, this is now resolved:

Same happened to me. In placement I was 5/5 the last game was won. We have the video my friend Shindai and I. We won but it says I lost in the same game. Also in the first 15 secs on my comp placement two games before I had a power surge DC’d could not log back in…got a 13min ban. I played 10 games only but it is saying i have 11 games and I loss 6 wich is wrong. Please check it.