I see just UDP as well on Wireshark, so that should not be issue. I had to add UDP as safe protocol for ffmpeg command, Bebop is transferring RTP over UDP.
check the version of ffmpeg on your computer, the message in your log looks like there is a build version issue. You can try to run ffmeg from terminal (instead of "save" command), as I just spawn the child process anyway. Just start the video before that.
As for VLC, I know it sounds weird, but have you tried to open the file in different ways? Open network, open file, double click the SDP file, etc. If I remember correctly I had a problem when I opened the file in some of the ways.
It looks like that you have a problem with decoding libraries on your computer, so I think the problrm might be there. If you have problem with ffmpeg and VLC at the same time, so I would look into versions of those apps.
What is the OS you are using? I'm on OSX