PBE Parties are Broken

The PBE party system is broken. I think this is because client's are not updating/synchronized with the server. I can replicate it 100%.

Party of 2 people:

1. P1 creates party
2. P1 cannot invite P2
3. P2 can join the party (if it's set to open)
4. P1 cannot see P2 in the party, but P2 can see P1 in the party
5. P1 changes gamemode
6. P1 and P2 can see each other
7. Change back gamemode to the gamemode you want to play
8. Play!

Party of 3 people:

1. P1 creates party
2. P2 joins, Same behaviour (P1 cannot see P2 but P2 can see P1)
3. P3 joins (similar behaviour (P1 cannot see P2 or P3, but P3 can see both P1 and P2, but P2 can only see P1)
4. P1 switches gamemodes, and thus sees everyone. HOWEVER, the other player, P2, cannot see P3 yet.
5. Switch gamemode back.
6. Start gamemode.
7. We all get Q pops but...
8. We all accept -> 1 person's client 'hangs'. They are stuck on match accepted. The other 2 players get another Q pop (because another player wasn't ready), and then the client hangs for everyone.

From what I notice, when I change gamemode, the client that changes the gamemode gets synched with the server, but the other players DO NOT (at least player wise). A player joining a party does not prompt the other side to update.

Hope Riot can fix this soon!

Sincerely, ~ Someone who will work at Riot in 2 years.

EDIT: the player chat on the side is kinda sporadic and doesn't update (i.e Featured Game, 3/5 when the party has already disbanded)