Invalid URL at line 1

[kdrymer]

Hello, I am getting the below error while running this in a Windows command prompt.

Using ffmpeg version git-2020-05-01-39fb1e9 Copyright (c) 2000-2020 the FFmpeg developers

Invalid URL at line 1, skip..

No valid URL from input

I have verified the URL opens the video in the Edge browser, and I have quotes around the URL. What else could be wrong? The video is not hosted on a Microsoft page, but a cloud Sharepoint site.