[Random crashes to desktop - no error log, no crash report]

I have had several (4-5) crashes to desktop during teamtalks. Frustratingly, it usually happens when I've just had an important win. The game locks up when I select a player to give a teamtalk to.

[How to edit manager appearance before starting the game?]

I have this exact same problem. I am not happy with my manager avatar, and I can't find any button to edit.

I got prompted to create the avatar on first load, but can't find anyway to change him now.