[pkscout]

Since you're a Kodi team member I ask you for confirmation about this.

I have investigated a little but I wish to stress I'm no coder, I'm no dev.

What I found is that there have been three recent commits to ffmpeg, about three weeks after 6.0 final release:

Kodi is not yet on newer versions of ffmpeg.  This will, in fact, have to wait until that is done.  There is no firm ETA on that.