Ship Command certification doesn't work on ships you take over or steal. It only works on ships purchased by you or given to you. Fixed by wSkeever in mod linked below

Details

https://www.nexusmods.com/starfield/mods/6185

Game Version

1.7.3.6

Language

English (EN)

New Game

Yes

Reproduction Steps

https://www.nexusmods.com/starfield/mods/6185