There are numerous uniform color errors from entire uniforms to collars being wrongly colored.
In the final battle with the alien ghost, the Particle Throwers are colored red briefly.
When Egon suggests to separate into teams , Ray has on the same uniform as Egon and Peter, as Winston.
Toward the end when Peter is at the computer, Winston's jumpsuit is colored as Peter's during close-ups.
Winston's space uniform name label misspelled his last name as "Zedmore"
Slimer's bottom half stays in place when he falls back in the shuttle.
After they arrive at the space station, all four Ghostbusters appear to be walking in place.