PBE TFT Can't Finish A Game

Anyone else having this issue? I literally cannot finish a game (tried 4 times now) without losing connection. I know there's a shiny red button that says they're aware but is it this bad for everyone else as well?

Edit: Asked in my last game (fifth now) and someone said it's whenever someone dies. Seems to be true so far.

Edit 2: Played a sixth game to completion (finished third) and then a seventh (finished seventh) and the client stopped matchmaking. Closed and restarted it, it now can't authenticate but starts a game of league anyway which just black screens for a minute before saying it can't contact the server. I started a PBE account specifically for TFT so maybe this is normal?