When researching Bruno Anselmo, his birthday is shown to be in 1990. As it is set in 2019, that would make him 28/29, however on the news report after the shooting, the announcer describes his as being 32.
When Logan sees the bag of antiques Max tried to steal, there is a statue that he says is attributed to Chitarus. What he meant was Chiparus (Demetre Chiparus, a Romanian art deco sculptor, who worked primarily during the 1920's and 1930's, creating chryselephantine (ivory and bronze) statutes , primarily of women.
When the PI is giving the license plate number he says Wyoming Tags A T G 3 4 9. Wyoming has never had tags that read that way.
During the discussion when Logan Cale tracks down Max and first meets her in the bar, Original Cindy looks at her watch and you hear her say "Xena's on!" without her lips moving. The voice doesn't even appear to be hers though she's the only one within hearing distance.
When Max is hanging Lydia out of the window, you can clearly see the strap that is holding Lydia up by the ankle.