Hi @Civinator , How can I remedy the bug of making elves not choose the first generation development of dark elves(or vice versa)? When I accept the technical development automatically offered by the game that the machine chooses, so I don't select the desired technical development in the development tree, it usually chooses Bestarium independently as the first knowledge to be developed, which is an early medieval, that's not a problem... ...but as a second development, however, it offers the prehistoric scientific development of the dark elves, which is not, in principle, necessary for scientific advancement. This is already a bug. This problem can even affect the orc-dark orc pair because they share their first known knowledge like elves and dark elves. I set everything up as it is in the Discovery Age campaign: This thing worries me because then the AI can science develop that is not a basic requirement! Or the other group has access to governments that they shouldn't. Can You suggest a solution to fix this bug?