[MU4 Issue] Musesounds solo viola still has that permanently portamento sound to it

Describe the bug
The solo viola (based on the recent Musestrings version) still has the permanent portamento in its sound.
To Reproduce
Steps to reproduce the behavior:

1. Open a new score with solo viola using Musestrings solo viola
2. Add a few notes, preferably with no rests in between.
3. Press play
4. Note that one can hear the viola play these notes with a hint of portamento despite no marking indicating such.
   Expected behavior
   The solo viola should not play with a portamento effect unless marked to play that way.
   Screenshots
   The OBS recording is in this GDrive link (I upped the volume to assist observation)
   https://drive.google.com/file/d/1gaCzhJlpLkhqRm5bGcYZhHHjtktlsREW/view?usp=drivesdk
   Platform information

• OS: Windows 10, Musescore 4 Beta 2