When Harmony (Lara Fox) reaches for the tissue her bloody hand is missing a fingernail, but when she wipes her eyes with the tissue all her fingernails are visible. This is because one of her fingernails broke off and was lost while filming, and the scenes were filmed out of order.
Because the shooting dates were weeks apart, Gabrielle (Alina Nastase) is wearing pink nail polish in the wide shots but red nail polish in the insert close-ups.
Akihiro Kitamura (Yuuto) filmed 'Cobra Kai: Season 5' in between shooting 'Last Ride', and his hair is noticeably longer in the scenes filmed after his return.
Because most of the driving scenes were filmed on a back lot with Yuuto (Akihiro Kitamura) not actually driving the car, he very noticeably isn't wearing his seat belt in various shots. This goof is major considering that his seat belt plays a significant part in the story line toward the end of the film.
At the end of the film, Yuuto (Akihiro Kitamura) arrives with Gabrielle (Alina Nastase) and Harmony (Lara Fox) in Carson City, CA but the map on his iPhone shows that they are approaching the intersection of S La Brea Ave & Obama Blvd, which is actually in Inglewood, CA.