The short version
Demo fix: Shift-click the ingredients into the station slots before trying to craft.
Place ingredients into the station
In the Demo interaction, selecting a recipe from the list was not enough. Materials had to be moved into the Campfire or station slots first.
Use Shift-click
The recorded shortcut was Shift-click on the material to send it into the station slot. After every required slot is filled, check the craft action again.
Treat the shortcut as history
Early Access may change the input, slot layout or tutorial copy. If the station still does not respond, follow the current prompt and capture the new flow for the change tracker.