And as a reminder, Branflakes has said repeatedly that the packs are not going away, the only limited aspect about them is the price. As you have already given them money, I would assume that means you will get the pack regardless of when the transaction clears.
I ran this mission more than a few times, and I think I've figured out what makes it break, at least for me. I found that if you don't interact with both the weapons and armor and the broken console before you speak to Slamek, he will not move for the rest of the mission, even if you later interact with both. I still…
I too had some issues, notably the Romulans aren't lit from the front like Starfleet is in the character creator, making it a bit harder to pick out a uniform. As for clipping issues, the Romulan Civilian skirt does not move nearly as much as the toon itself, particularly when running.