UPDATE:

Finally managed to get a screenshot of a passive ability in my skill tray.

Just before posting this I completed a fleet action and went to Earth Spacedock and noticed I had an icon on my skill tray that wasn't there before I did the fleet action. This is exactly what I was talking about earlier with the skill tray acting wonky. Passive abilities can't be placed on a skill tray, at least not manually, and it happens to me at random times. The passive ability I had on my skill tray I obtained a few days ago so it doesn't happen right after gaining a new accolade which grants a new passive ability, though it seems this was the most recent passive I earned.

Screenshot as proof. http://imageshack.us/a/img145/3268/s...2122622484.jpg

Edit: The funny thing is this is a ground passive and the fleet action I did was space.