Symbols or long paths can prevent media players from "hooking" the file. 2. Broken File Headers
Software like Untrunc or Shoviv can sometimes rebuild headers if you have a working 4K file from the same camera to use as a reference. 3. Hardware Limitations (4K Playback) 0197 - What's wrong with my even…ar- 4K.mp4
Try importing the file into Handbrake. If it can "see" the video, try encoding it to a standard 1080p MP4 to save the footage. Symbols or long paths can prevent media players
If the file won't play at all, the "header" (the part that tells the computer how to read the video) might be damaged. 0197 - What's wrong with my even…ar- 4K.mp4