Notes tied with slur consume two lyric syllables and break LilyPond
Operating System: Windows XP-sp3
MuseScore Version: 0.9.6.3
It seems from the little I have seen of lyric adding conventions (ie some printed examples and LilyPond's conventions) that if two notes are tied with a slur, that they should only use only one word or syllable for the pair. However MuseScore operates differently (and maybe incorrectly) in that it requires two words (or syllables separated with a hyphen) to match up with two notes that are tied with a slur.
When these notes and lyrics are exported for input to LilyPond this difference breaks LilyPond's word<->note synchronization rather badly. See the attached score for examples of slurred note pairs which need a syllable for each note of the pair. Try exporting to LilyPond to see several bad breakdowns in the information transfer.