Use Snipping Tool to capture screenshots - Microsoft Support
Sometimes taking a screenshot on Windows or mobile and then uploading it to Facebook can strip or corrupt the original metadata, leaving the platform to generate its own filename.
If your browser or operating system is set to a different language than the one used when the file was originally named, the characters "break."
Facebook uses aggressive compression for JPGs, and during the save-as process, your device may struggle to render the auto-generated title. How to Fix It