Phantom of the Roller Coaster: Part 2 - S3-E24
Deliberate mistake: When Wonder Woman jumps from the tall building to catch Fynch, she is falling on her back (for a safety landing on an airbag or similar). However, shot cuts, and she is suddenly jumping ahead towards Fynch.
Phantom of the Roller Coaster: Part 2 - S3-E24
Continuity mistake: When Diana finds the trap door to the basement, she is wearing high heel boots. When she sneaks in, she's wearing black flat shoes.
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?