Yeah, I’m seeing exactly this issue too.
I’ve updated the mirrorlists as suggested: I only had UK mirrors so added Worldwide, have rebooted (for luck), ran sudo pacman -Syyu and still getting the same outcome:
error: failed to commit transaction (could not find or read package) [-----------C o o o o o o o o o ] 28%
Errors occurred, no packages were upgraded.
My Garuda-Inxi is in this thread relating to the AUR Infrustructure change.
Any other ideas would be very welcome. This one’s beyond me.