Import of MIDI file with lyrics duplicates some syllables

[jonarnoldmusic]

Issue type

Engraving bug (incorrect score rendering)

Bug description

When importing MIDI with lyric information, some syllables are duplicated on top of each other, giving the appearance of bolded or thicker text. This is especially problematic if you adjust the alignment of a syllable (to account for melisma, for example) because multiple positions are then visible.

Steps to reproduce

1. Export midi file (my use case is Lilypond)
2. Import into Musescore
3. Must delete individual syllables, often several times, until one remains

Screenshots/Screen recordings

Bold-appearing syllables mixed with normal text:

Alignment problem:

MuseScore Version

4.3

Regression

I don't know

Operating system

Windows 11

Additional context

I was unable to duplicate this with an MIDI export from Musescore (apparently Musescore doesn't export lyrics), and I don't have a source other than Lilypond to test with.

MIDI file example:
MIDIfile.zip