I think just this past weekend, those skills are not working correctly. I hit Tac team and my shields didn't do **** to distribute. It's like someone reverted their change back to the old mechanics.
TT =/= auto Distribute Shield Power. It only diverts power to shields that are currently taking damage; so it does nothing to the shields unless you're taking damage. It's also possible, as suggested, that if you have SS on you, you put it onto a random mine or something instead of yourself.
I've had that happen to me in an STF before, so it really has nothing to do with PvP. I forget how that was fixed though, I think you needed to take your shields off and die once. Meh, don't recall, it was months ago when that happened to me.