For some reason this doesn't highlight correctly on certain items. It's always the same issue too. If I don't have enough of something it will usually show copper wire and wood boards (for circuit boards) as red, even though I have plenty of wood and copper. Then I run around grabbing stuff randomly until it lets me build it. The resource missing is never listed in the raws so i have no idea what it is. Additionally I have also seen instances of items that showed red copper wire and boards that I could craft fine..