As Destro relieves Ripper from his chair to deploy the solar-power molecular destabilizer, Ripper is wearing gloves, which are the same type that Destro wears. Then when the Dreadnoks cheer on Destro for destroying the Joe's jets, the gloves have vanished from Ripper's hands. Ripper never wears the same type of gloves, which Destro has and there's no evidence of how he could have gotten them in the first place.
Airplanes would not be able to function in space.
When the Joes are being spun around on the spinner after being in the chamber with zero gravity, there's a medium close up of each Joe. In the shot of Scarlett, the color of the red patch on the upper right shoulder of Scarlett's uniform has changed to white.
After a group of Joes took the test, where they sat down and got shook up, the grid pattern on the red patch on Scarlett's uniform is missing as the camera pans along the Joes that dealt with the test of being shaken up.
Alpine and Roadblock's ship fires missiles, which hit the top of the space station. When Destro slightly leans forward as Zartan what to do since the cannon's can't be aimed strait up, the color of the collar on the neck of his silver mask changes from silver to the same color as his chest then changes back to silver when he says "not swamp animals."