Notes cut off on exported audio, when using VST instrument (EastWest Opus)

[Ctrl-Shift-Alvin]

Issue type

VST bug

Description with steps to reproduce

1. Create piano score
2. Write some sustained (pedal) passages with different note lengths and articulations
3. Select "EastWest Opus" VST plugin in the mixer
4. Load the "Bösendorfer 290" instrument
5. Play score and notice the mostly normal playback
6. Export to MP3 using any settings
7. Audio is cut off in the exported MP3

Supporting files, videos and screenshots

audio.zip
The ZIP contains "recorded_audio.mp3" which shows what the software plays in realtime, and "exported_audio.mp3" which shows the result of exporting the audio.
diagnostic_info.zip

What is the latest version of MuseScore Studio where this issue is present?

Tried it with OS: "Windows 11 Version 2009 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.2-242570931, revision: github-musescore-musescore-3130f97" as well as with the latest nightly build "OS: Windows 11 Version 2009 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.3-242720503, revision: github-musescore-musescore-7f1f1fc"

Regression

No.

Operating system

Windows 11

Additional context

The exported audio is fine with all soundfonts as well as with MuseSounds.
The sound seems to be cut on all notes, even if no pedal is used. However, using pedal does make it even worse. It seems like MS forces the plugin to stop playback of the notes, when their end is reached, instead of letting the natural reverb play. (that's what my ears tell me)
I tried changing all settings on the VST plugin, disabling all reverb a.s.o. but the problem is the actual playback of the notes.

I'm happy to try anything you need me to with my setup, just tell me what to do.

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

[DmitryArefiev]

@Ctrl-Shift-Alvin I can't reproduce with Piano VST from Kontakt 7. Does it occur with other VSTs or only with EastWest Opus Bösendorfer 290?

Also, I have noticed interesting detail with your audio file. exported_audio.mp3 has 44kHz and 130kbps which is weird, we don't have that setting in Export Audio dialog..

And are you sure it's not a regression? (so it was in MuseScore 4.0.0 too)