[FFmpeg-user] Changing frame properties not supported error out of no where?

[Roger Pack]

> Ok so?  It worked since may or June than and a few days ago, in the middle of encoding stopped working.
>
> I have in my output folder  videos successfully encoded from October 5 ,sixth ,and then on the seventh they are only audio.  And since the 7th only audio with that useless error message.
>

So which ffmpeg versions worked and which didn't? Or better yet, use
git bisect to find the offending exact commit.
-r