Hello !
I have read about similar problems here in the forums. But not exactly the same, maybe. After having begun the FP when everything works OK: It's in Story mode, I have level 51, a Bounty hunter. I enter and the Combat support droid appear, and follows until the bridge with the big, flashing boss (is he a trandoshan ?) which throws you of the bridge so easily. There the combat droid dies while fighting - it has happened two or three times - and when I am finished I can't activate it. I won the battle though ( my companion also died the last time).
The button to press in order to activate the Combat droid has faded somehow, when I press it there is a message in red, that I must be in solo mode to use the droid. But I have solo mode, as far as I see.
What is this ?