I removed ffmpeg2.8 with the terminal like you suggested, then i was able to do my updates and everything was OK.
But i could not reinstall ffmpeg2.8 with yay, it does’nt work and did nothing, so i had to install it from the AUR again.
Now all is working fine and all updtates are completed!
Unable to complete update!
@philipc if you look on the website 4kvideodownloader if you change te version in pkgbuild and firstline of sha256sum change to SKIP you also then have the latest…, i have trizen and yay , with yay is more or like yay --editmenu xxx but multiple files is kinda dificult for it…
and yeah of had to reinstall from aur because it needed a rebuild :p