Retrofit high rear view camera problem

Hi everyone,

I bought an RVC High camera (4M0980556A) on AliExpress and installed it according to the wiring diagram. After coding, the camera worked, but the image on my MIB 2.5 Amundsen was distorted/glitchy, and I had a few communication errors with other modules.

I then reflashed the camera via ODIS-E to 5Q0980556B (as suggested on some forums) and loaded the dataset for the Octavia A7 FL. The communication faults went away and the dynamic guidelines appeared, but the image distortion remains the same. The only DTC left is for calibration.

I'm currently working on a calibration tool, but I'm worried that calibration isn't the root cause of this image distortion. Has anyone experienced a similar issue, and what could be causing it? Any help would be greatly appreciated!