Is RPI v2.1 camera supported at 1080p with opencv4?

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I have a raspberry pi v2.1 8MB camera that works okay on raspberry pi 3B and 3B+, with Python 3.7 and opencv 3. I bought a new raspberry pi 4 buster, built opencv 4.1. All of my programs work and only a few needed adjusting. However, the camera does not work well on 1920x1080 model. There is always a distorted colored horizontal area of 1/5 of the screen. I am doing simple opens, read, imshow, etc. Again, all code works except in highest res mode. The camera will work in high res mode using raspivid or ffmpeg.