When using Sforzando with a .sfz file, the score is marked as needing to be saved every time after playback

Issue type

VST bug

Bug description

When loading an .sfz file for playback using the sforzando VST plugin, it works normally but after you save and close, then reopen it and pressing play, it requires me to save the file again. Reopening and it still requires me to save. On larger scores, it doesn't load the .sfz file so you have to manually load it in for it to work.

Steps to reproduce

1. Create a new score on MS 4.2.1 with the sforzando plugin installed (version 1.977). https://www.plogue.com/downloads.html
2. Input a bunch of notes.
3. Switch the soundfont to the sforzando plugin.
4. Load in a .sfz file.
5. Save and press play.
6. Save again and quit.
7. Open the file and press play.

Screenshots/Screen recordings

https://www.youtube.com/watch?v=xoSnlITmMaM&ab_channel=PhilMC_

MuseScore Version

OS: Windows 10 Version 2009 or later, Arch.: x86_64, MuseScore version (64-bit): 4.2.1-240230937, revision: github-musescore-musescore-d757433

Regression

No

Operating system

Windows 11

Additional context

I'm not sure if this is an sfozando issue or with MS but I do remember this not being an issue in previous MS versions. At least until 4.2.