Yes, they are only filled when Test playing works with the info about which codecs were used.
Probably Youtube changed something. Always good to attach logs and give info how to find a video of this type, so I can reproduce it easily.
Those are blocked by YouTube in Germany So I can't even get to them if I wanted.
Seems Youtube and Sweden also have an unhealthy relationship, log says:
Detta videoklipp visar Queen Productions och UMG. Det är inte tillgängligt.
Did that clip ever play? Not sure if we can get those videos to play - anyone know how to "unprotect" them (without a proxy)?