With this example:
% --------------8<--------------------------------
\header {
tagline = ""
}
\relative c'' {
c c c c
\override Score.RehearsalMark #'Y-offset = #3
\mark \default
c c c c
\override Score.RehearsalMark #'Y-offset = #0
\mark \default
c c c c
\override Score.RehearsalMark #'Y-offset = #1.5
\mark \default
c c c c
}
% --------------8<--------------------------------
... 2.12.3 produces "correct" result ("as expected") while
2.13.11 ---
really unexpected. Attached, please, have i missed something?