Violin solo 1 and 2 sound weird (as if 2 sounds are playing at once)

Issue type

Muse Sounds bug

Bug description

When playing back scores with the violin solo 1 or 2 instruments, the sound is "weird" a lot of the time: it is as if 2 sounds are playing at the same time.
I first noticed this when playing back some violin scores, but to reproduce it, I now did a quick test with a very simple score, and the problem is very easy to show / hear.
To be honest, this makes these 2 instruments almost unusable.
See the attached files + steps to reproduce.

Note: I found another very similar report in the old/deprecated issue tracker: item 2) in this report from a while ago: https://musescore.org/en/node/338213 but since that is not operational any longer and I couldn't find a corresponding issue in the GitHub issue tracker, I created this report here.

By the way, a small logistics request for the GitHub issue tracker: could you please allow people to upload file types that are very common for MuseScore users, like .mscz and .wav files? It would help with reporting. I'm sure some people just abandon their report when they encounter errors when trying to upload their files and don't go through the trouble of converting or zipping them up.

score and audio.zip

Steps to reproduce

1. open the attached score
2. play it in MuseScore 4 --> it sounds as if more than 1 violin is playing
3. (optional) export the score as a .wav file
4. (optional) open the .wav file in Audacity
5. (optional) split the stereo track to 2 mono tracks and remove 1 of the mono tracks
6. (optional) set the display mode of the track to multi-view, so you can see/inspect the spectrogram --> you can see "double" spectral lines, which confirms the weird sound

My gut feeling (as someone having some experience with VST(i) development): I think there could be an issue in the MuseSounds playback engine where some samples keep playing or are playing when they should not, perhaps related to articulation settings (even though there are none in this score)?

Screenshots/Screen recordings

MuseScore Version

4.1.1

Regression

I don't know

Operating system

Windows 10 Pro 22H2 19045.3324 64-bit

Additional context

No response