The MOV video is not playing correctly

[Дмитрий0D4C]

Hello there! Please tell me why videos taken on an iPhone are not played correctly on the timeline. I tried to mount a 4K and FullHD video - the same strobe, and after playing a short segment, the video starts repeating at first, although the sound is played back correctly and there are no problems with the sound at all. I tried to encode the video in mp4 encoding via ME also occurs incorrectly. I use PP 12 version of windows 10. Video format .mov 1920x1080 59.94

Thank you in advance!