Update 2: It seems that the error is in the tooltip you get when hovering over the big list of ships on the left. If you add a ship to the roster and then hover over it boost is not shown (except for ships that have it or engine upgrade.)
Huh. That's not something I can fix. That's part of BattleScribe's coding, not my data files. You could start a conversation about it over on the BattleScribe forums, but that's about all I can suggest. To be honest, I hadn't ever used the mouseover on the left side menu on the Roster Editor. I'm glad it is displaying correctly for individual ships in your roster and in the Roster View.
I was wrong. I figured out exactly how to fix this. It will take a bit of work but I can do it. I'll make sure to have it ready for the next update, which is likely to come whenever FFG spoils some more cards. I'm sure we'll have the TIE Phantom preview in the next week or two, if not another article on the Tantive IV.