I can't explain the difference in behavior, but with 2.14.2 you need to put \frameEnd and \frameStart after the note. So, the following can be substituted into the file attached earlier in this thread:
\relative c'' {
\override Stem #'transparent = ##t
\override Beam #'transparent = ##t
\once \override Frame #'extender-length = #8
dis'8[ \frameStart e f ges] \frameEnd s2
\once \override Frame #'extender-length = #11
d,8[ \frameStart e f g] \frameEnd s2
\once \override Staff.BarLine #'X-extent = #'(+inf.0 . -inf.0) % line can cross bar line
s2
\once \override Frame #'extender-length = #3.5
fis'8[ \frameStart bes,, aes, e''] \frameEnd
}