First the red star insigna was painted over with white circles.
After October 4 1962 all MiG-21F-13s of the 213th regiment adopted Cuban national insignia, but the diameter of the white circles was larger than the Cuban insignia, and was visible like white outline.
On the wings, the Cuban insigna was just in two positions.
On the top of the left wing, and the bottom of the rght wing.
The other wing positions were the white circles.
On August 20th 1963 all MiG-21s were handed over to the CubanAF.