The issue you're facing with a specific MP4 Quicktime file on your M1 Pro MacBook Pro running MacOS Ventura 13.5 seems quite puzzling, especially since other files don't exhibit the same problem. Let's explore a few potential solutions:
Check for File Lock
1. Right-click on the file and choose "Get Info" or select the file and press `Command + I`.
2. In the "Get Info" window, look for a checkbox that says "Locked" and see if it is checked. If so, uncheck it.
Use Terminal
1. Open Terminal from the Utilities folder within Applications.
2. Use the `mv` command to move the file. The basic syntax is `mv source destination`.
mv /path/to/source/file.mp4 /path/to/destination/
Check Disk for Errors
1. Open Disk Utility from the Utilities folder within Applications.
2. Select your drive and click "First Aid" or "Repair Disk" to check for errors and fix them if any are found.
Investigate File Integrity
It could be that the file itself is corrupt. Try playing it or opening it with another application to see if it's functional.
Boot in Safe Mode
1. Shut down your MacBook Pro.
2. Turn it on and immediately press and hold the Shift key.
3. Release the Shift key when you see the login window.
4. Try moving the file while in Safe Mode.
Reset NVRAM
1. Shut down your MacBook Pro.
2. Turn it on and immediately press and hold the Option, Command, P, and R keys together for about 20 seconds.
3. Release the keys and let your MacBook Pro start normally.
After trying these steps, restart your MacBook and see if the issue has been resolved. If you're still having trouble, you might consider contacting Apple Support for further assistance.
