I refreshed (that is deleted & had the game remake) my configs just to make sure it wasn't me, but it seems in the v1079 beta, when you or someone else selects a character that the game hasn't loaded yet, it'll cause a substantial lag spike for about 1 second.
Additionally, sometimes upon first loading the game, some character cosmetics will be missing textures, but only sometimes. Trying to launch a map after this happens results in a crash, and the 1st restart after that crash will cause a crash on startup. Restarting the game after both of these crashes fixes them.
Additionally, sometimes upon first loading the game, some character cosmetics will be missing textures, but only sometimes. Trying to launch a map after this happens results in a crash, and the 1st restart after that crash will cause a crash on startup. Restarting the game after both of these crashes fixes them.