I just arrived at the area just north of Gilded Vale and went to fight the few mobs there and notice my chanter (my main) no longer had the scrolling music showing, the staves are stll there and I am still chanting and still gaining points (and its effects are working) but the bars are empty. Sadly I have already copied over an old save before I realised there was a problem, so couldnt revert back to troubleshoot.

Same problem here. Any fix, please?

Same problem for me. Tried to reload my save but that didn't help. 

Same problem here as well, in the Valewood area. Earlier save from the ruins worked fine, though I don't want to backtrack that far. Is this an area specific thing, or is it an honest-to-god bug?

I got the same issue as you guys, at the start. The Ruin portion is fine. As soon as i hit the next section it happens, also on reload. You can hear the voice as if chanting but the phrases don't roll.

just an update for me, it seems to have righted itself and seems to be only an issue (so far) in Valewood, though I am only a few hours in and not too far from the first city.