Error: "FFmpeg cannot edit existing files in-place"; but directories are separate

[robertdeanmoore]

I got this error:

Output ./results/6711faf2-39ab-4dd7-a1d0-8869ea0968b0\INPUT_IMAGE_NAME##OUTPUT_VIDEO_NAME.MP4 same as Input #0 - exiting
FFmpeg cannot edit existing files in-place.
Error opening output file ./results/6711faf2-39ab-4dd7-a1d0-8869ea0968b0\INPUT_IMAGE_NAME##OUTPUT_VIDEO_NAME.MP4.
Error opening output files: Invalid argument

This implies they are attempting to over-write the input files but when I look in the results folder, the input files are clearly in a file called inputs, separate from the 5 output files (1 x MAT, 3 x MP4 short enhanced full, 1 x TXT). The output videos were present.

For transparency, to get it working in the first place I used the new app_python.py file from here: #693