1. Camera or lens problem: If the camera or lens used is of poor quality, the picture may be distorted.

2. Resolution setting problem: If the resolution of the live broadcast is set incorrectly, the picture may be distorted.

3. Video processing software problems: There may be problems with the video processing software used, resulting in picture distortion.

4. Network problem: unstable network or insufficient bandwidth may lead to image distortion.

5. Hardware compatibility: If the live broadcast equipment is incompatible with the computer or other hardware, the picture may be distorted.

6. Problems with the live broadcast platform or software: There may be technical problems with the live broadcast platform or software, resulting in picture distortion.