Hi,
I understand it is intended to have these buttons visible only after research is completed. However, if you unlock the buttons on a game, any subsequently created games will have those buttons visible from the start.
Steps to reproduce :
- Research combinators on your game
- Create a new game
Same applies to Artillery and Spidertron remote. I have them visible in my SA game since I've opened an old save, even though I did not unlock those techs yet in the SA game.