Same issue here... Keyboard is working, but mouse is not usable within the game. Getting into the menu, it works.
If I go in to the Settings, it has options for controller support... Should those be there, even though I don't have a controller?
Would be great if someone had some information on how to get the game to a playable state again.
Edit: I should say... The mouse is being recognized, as pressing the middle mouse button will open the quick wheel and you can left click to leave it... But mouse movement and left click for attacking is not being recognized.
