DirecTV gets those music channels from another company, so they don't control the track title text. 

It just needs fixed by someone. It was always correct in the past. 

What are the models of each box you have?

Do they each have the problem?

I would try a red button reset, or even unplugging power to the box for a minute, in case it is info that is frozen in your equipment's memory. If that doesn't fix it, then there is an issue with the info being passed to DirecTV by Music Choice (the current music channel provider).