IMG_2033.MOVIMG_2033.MOV

This usually means your player doesn't have the right audio codec (like AAC or AC3). Switching to VLC usually fixes this.

If you need to share the video with someone who can't open .MOV files, converting it to .MP4 is the best solution.

Use the VLC Media Player or the PotPlayer . Windows Media Player may require a "HEVC Video Extension" from the Microsoft Store to play newer iPhone videos.