My [Mobile Tractor Unit Blueprint - Copy] has a greyed out “Invention” icon in the [Show Info/Industry] tab. Same result if i drop it into the Industry window in an Invention-capable station.
How can i, or why can’t i, know this before investing in the blueprint and making the copy?
Where are the ‘Packrat’ and ‘Magpie’ blueprints coming from? Why are they not viewable in the [Regional Market]? (and is that the only indicator that you can’t invent them?) Who do i have to kill to get this information available in-game? eg: mouse over the invention tag and get a pop-up balloon: “Tech II models of this unit cannot be invented”.