As Harm reported, the fix for issue 1578 (which is probably the same that fixed 664) doesn’t work for cross-staff cases.
\version "2.19.38" \paper { line-width = 50 } lower = \relative c'' { \override Glissando #'breakable = ##t \override Glissando #'after-line-breaking = ##t d,,1\glissando \break \change Staff = "upper" f'''1 } \new PianoStaff << \new Staff = "upper" { s1*2 } \new Staff = "lower" { \clef bass \lower } >>