You know the scenario. You go to edit your bindings but you accidentally set the wrong binding to your left mouse button, resulting in you being unable to click anything in the game. When this happens you’ll need to go to the following location and default the controls.json file.
C:\Program Files (x86)\Steam\userdata\yoursteamid\324510\local\user_settings\default\controls.json
Once you’ve deleted the file, restart the game if you haven’t already and your controls should be reset.
We do plan on addressing this issue in the long term by presenting the user with a confirmation box to confirm the new binding.