Bug? Lyrics Overflow Music Frame

In setting up a layout for a single line melody with 5 verses of lyrics it appears that the music frame boundary does not take lyric content into account - hence my lyrics overlap the copyright frame at the bottom of the page. Possibly a bug? I would have expected the lyrics to be included in determining the number of lines of music to include in the frame. See screenshot below.
Lyric Overlap.PNG

Please see this thread.