Failing when trying to find files with numbers appended.

[TijuanaKez]

Starts off ok and find the file and ffmpeg does some things successfully, but it eventually fails here every time.

[in#0 @ 0x7f93918046c0] Error opening input: No such file or directory
Error opening input file /Users/me/Desktop/Fuego.1.aiff."

It doesn't matter what file it is or where it resides, it's always trying to find my input file with a ".1" after it, in the same folder, but it never exists.
On a Mac Sonoma.

thanks.