Playing Bo3 standard ranked

PC Windows: Unable to sideboard between games. Sideboard phase is skipped. It happen after first and second game. Log attached. I have restarted client during second game.
Expected: Able to sideboard freely without issues.
Log attached
No workaround.

Problem was that I have accidentally played BO1 version of deck without sideboard. But should the game enter sideboarding with empty sideboard, I would find problem sooner. Please change this behavior so empty sideboard is shown I user will be aware of this.