[Website/Client] Match History Shows No Item Build Purchase History

In this game I was the Poppy. Something trippy happened and I was unable to connect until around where my enemy laner was level 5. All went smoothly and we won still, but I just wanted to use the purchase history to see when I reconnected and then noticed that it was blank for me. I'm betting the match history client thinks I never connected because I DC'd for 5 or more minutes.

REPRO:

I'm not actually gonna check and see if this a reliable repro since that would require abandoning games as they load in, but I disconnected as soon as I hit the champ loading screen. I got the "You have Disconnected" during the loading screen and did a full restart of my PC. Then I reconnected and played the game on the same connection.