Just tried fetching Celine Dion's bio again, and now it looks fine.
if you change
autoHide name="#ArtistInfo" xAnchor="Panel.55"
autoHide name="#ArtistInfo" xAnchor="Panel.5"
then it works fine.
But with Panel.55, I can't really see the last line even by dragging the scrollbar with mouse, not to mention scrolling the mouse wheel.
Can you reproduce it?