[game loader] URGENT FIX NEEDED

I've had the following happen a few times to me now:

I load a 5v5 match (has happened in both summoners rift and the new Poro King mode). I am the first player to load to 100% loaded. Another player shows as disconnected. My screen shows as if I'm waiting for the other players to load. Eventually either the other player is still disconnected but everyone else is at 100%, or the player reconnects and everyone reaches 100%. normally you wait a few seconds for the game to open and start - the bug is that the game loading screen just sits there, saying you're at 100% but not doing anything while the game starts for other players.

I alt+tab and close the client window, re click the league launcher and it says I have a game to reconnect to (without requiring me to re log in).

It basically seems to be that when other players are having connection issues, my connection decides to stop querying whether the game is ready to start after I hit 100% and just doesn't start the game for me until I closer the window and reconnect.

I've been late to start to at least 4 Games now, and every time it's the same thing. My client shows no indication of any problem other than another player being disconnected and me sitting there at 100% - I'm only able to connect to the game because I obviously have a feeling for how long it would wait with everyone at 100% before starting and once it takes too long I leave it.

THIS IS DEFINITELY NOT A CASE OF ME LEAVING TOO EARLY BEFORE THE GAME STARTS. The first time this happened I waited a very long time and ended up finally re-loading and when I joined the game the solo lanes were level 5, so clearly I was sitting on the launching screen for several minutes while the game was playing. Since then I've been paying a lot of attention and typically manage to join around when minions spawn when this happens.

I'll also note this ONLY ever happens when ANOTHER player has "disconnected" (or "not connected", don't remember the message) show during the game loading screen. Also, EVERY time at least 1 other player on my team doesn't connect until AFTER I exit and reload to resolve this issue - I'm not sure if it's the same bug affecting them and I'm just loading faster, or if somehow the bug is preventing them from entering the game until after I enter.

Overall this is VERY frustrating because you can be put at a severe disadvantage due to someone else's connection issues - including the enemy team's. This is outright unfair and really needs to be resolved immediately.

I first noticed this shortly after 4.20 I think (I also made a thread then).