Continuity mistake: Inside the vault, when Diana spins into Wonder Woman, there's a golden picture frame on the left. When she has changed, the frame is gone.
Continuity mistake: Diana spins around inside the boat, but when she transforms into Wonder Woman, she's inside a white room. Then she keeps spinning into her wetsuit, and she's now back in the boat.
Revealing mistake: The underwater scenes of Wonder Woman are supposed to take place in the ocean, but it's very obviously a swimming pool with drain holes and a light niche.
Answer: Not just Grundy but everything that could link Diana and her Wonder Woman identity. A links to B, then to C.
Did Randy know that Diana was really Wonder Woman?