My holographic has never shown up either, and it never will. Also, it seems if you are having genric BOs showing up and you have enough BOs on your crew to fill the bridge, it means you have too many of one or more clesses. Like if you are getting a generic engineering BO showing up, then you have too many tac or sci, and not enough engineers on your crew. Its a real pain, but thats the only way to get rid of the generics, or to force a breen, or an Orion/Kilingon BO to show up on the bridge is to play with the class balance of BOs. Like if you are trying to get a breen to show up, get rid of a tac officer that you (hopefully) don't use, then replace it with a sci or engineer, and see if the Breen will show up after that etc... and sometimes it takes a while even after logging out for your changes to show up on the brideg. It sucks but is the only way I've been able to force certain BOs to appear on the bridge. Also, if you change bridges, it will probably mess you up again cuz different bridges have different BO requirements lol.