Lines (crescendo, diminuendo) not very useful: do not survive reformat
Windows Vista Ultimate 32-bit, MuseScore 0.9.4 revision 1753
Write some music, add lines (crescendo, diminuendo) that start left aligned to one of the notes in the middle, that span one bar line and end right aligned before another note in the middle.
Then do anything that causes the measures to be automatically reformatted: the lines are shifted left or right, have a different size and basically need to be all redone.
Lines are not anchored relatvive to notes, during automatic resize they are repositioned at random and their size also seem to acquire a random value.