Pretty sure it's actually a loading error. The advice BNGHelp keeps giving to players about their modems almost never helps resolve this issue and switching them out doesn't either. You also don't really lose connection from the servers, so it's hard to write off as a connection issue. In fact, it's seems closer to something like a Guitar error if anything. If it keeps happening, just keep posting in here. Eventually someone will look into this. Also, just in case, it might help going to other posts about this and upvoting them so Bungie notices. You got some trolls roaming around the forums downvoting everything without a second thought and being unhelpful.