This notification covers the screen. Clicking confirm flashes the icon, but does nothing. I can interact with the game in the background using hotkeys, but the mouse input only affects the confirm button and tutorials enabled checkbox (although the confirm button does not close the notification). See image below.
Update: Alt-F4 / windows task manager closing was the only way out of it, as all in-game menus were nonfunctional. Was forced to revert back to the most recent autosave.
How do you play with a 0.9.1 game version? I have the latest game version available via steam and its v0.9.0a. And the latest patch notes are only for the game versions 0.9.0 and 0.9.0a.