How does Kat leave the blue room twice?
When Kat is shot on the blue side:
From the inverted perspective, Sator comes out of the turnstile, un-shoots an inverted Kat, and exits with her on the opposite side, back to the Freeport entrance.
A few moments later, which is earlier to the inverted people on the blue side, Ives and crew remove her back to the red side.
So from an inverted perspective team Ives placed her there to be un-shot. But they also didn’t, they took her to Oslo.
Doesn’t this indicate the timeline was forked or rewritten?