[Menu] Cant click anything on post-game lobby (Forced to exit)

1. I just finished a match, and the option to honour a teammate came up.
2. I clicked honour for someone.
3. The "first win of the day" reward pops up, I click OK.
4. back to the honour screen, like I never did anything, so I click again.
5. Nothing is clickable on the PG lobby. The mouse cursor changes when I mouse over things, but I can't click anything.

(Perhaps relevant, I now cannot "update my client" and cannot log in again).