Yeah just happened to me too exactly as you say. I had one Friday but it was a bit different. Didn’t get the unhandled error note. It showed the normal animation for a win, but it showed me going from 10 wins to 11 when it should’ve showed 11 to 12. If I look at my wins total from the main page, it shows 11 wins, but if I go to the leaderboard, it shows me with 12.
I feel like that’s a bit easier for me to submit a bug and get fixed, but these unhandled exceptions where nothing records are the worst cause I bet they won’t be able to give me the win or all the stats I accumulated.