Fixed it. Something happened to the core game data. Uninstalled entire game and reinstalled it, now the components appear in my save games. Still don't know how that happened.
I know about the filter options up top. All other mass driver weapons show up (for my race only the railgun techs and the space cannon). For other races, the scatter gun, singularity driver, and the nano ripper techs also work fine. I'm not running any mods either, the only thing I ever did to change the game was make a custom tech tree while not altering any of the other ones. I just copied one of the others and altered it and named it something else. I don't think
I just started playing this game again and for some reason I cannot use certain ship components even after researching them. They are: Neutron Driver, Graviton Driver, Quantum Driver, and Black Hole gun. I cannot use any version of these techs in ship builder after researching them. They also don't appear on the ship design thing that you can use on the main menu. The techs appear in the tech tree's, but for all intents and purposes the components themselves don't exist. This
