They said there were mic problems for James Hetfield during the beginning of the song. As it turns out, only the t.v audience couldn't hear him.
The video, with audio intact is in the link.
James Hetfield’s microphone wasn’t turned on or wasn’t working, and it wasn’t until he walked over to Gaga’s microphone over a minute into their performance that viewers at home could finally hear him.
Now, RoLoad–the official Metallica Chapter in Bucharest, Romania–posted the entire performance on Facebook featuring intact audio. When asked how they managed to get the rip, RoLoad explained the web feed didn’t have audio difficulties. It was only the live broadcast on TV that seemed to have a problem. http://kroq.cbslocal...-working-audio/