Help! System outside of Frame

Do what I may, I can’t seem to bring the bottom stave onto page two. I have tried applying a frame break but nothing happens.

In Engrave mode, if you activate Staff Spacing, are there red handles on any staves/systems? (i.e. have you manually moved systems on either page?) If so, select the red handles and press Delete to reset them.

Thanks Lillie! That did it!