Near the end of the episode, when Andy comes home, his shirt is sweaty around his neck. Some scenes later the shirt is completely dry and then sweaty again. Also at the very end the shirt is dry again.
Dylan discredits the victim's wife as a suspect because she couldn't physically "put one canoe on top of another.....". The victim was affixed between two dinghies, or small row boats, which are distinctly different from canoes. Not an error the exactingly precise Dylan would make.
Lizzie participating in full-contact sparring in the gym without padded chest protection would be a violation of training health and safety protocol.