I'm having a problem researching the orbital ion canon, it says that all the prerequisite research is done (Rocket Silo, Utility Science pack and Military Science pack), yet it is not letting me research it (Shows as unavailable). I have tried removing the compatibility for Bob's mod from the settings as I am not using them (only bob's inserters) to no avail. I also tried removing the mod and re-enabling it and it also didn't work. Any help would be appreciated it. If you need any logs or saves please let me know.
Factorio Version: 2.0.66
Orbital Ion Canon Version: 3.8.14