Palm Mute playback seems to overlap between notes on guitar

[Iurig]

Issue type

General playback bug

Description with steps to reproduce

1. Write a fast guitar part with palm mutes
2. Play it back using either SC heavy or SC lead (using distortion makes the problem more apparent, the LP presets don't play back palm mutes correctly at all as per Muse Guitar: LP palm mute sounds like x-note #20651)
   The playback should sound very muddy and full of intermodulation distortion, when it should sound similar to when there is no palm mutes, but muted.

Supporting files, videos and screenshots

The zip contains the video and the musescore file

Palm Mute example.zip

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

MuseScore Studio version (64-bit): 4.5.0-250690403, revision: github-musescore-musescore-28c68b6

Regression

Choose option...

Operating system

Windows 11

Additional context

This also, to my ear, happens with the clean muse sound, but I think it's a lot clearer to hear in the distorted sounds.
The video was recorded on the latest stable release (4.4.4-243461245), however, I did check it on a portable installation of latest nightly, which is where I copied the version of musescore I said was the latest I tested on.

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

[bkunda]

@zacjansheski pls review

[zacjansheski]

As this is specific to a MuseSounds instrument, please report to MuseHub support team: https://support.musehub.com/hc/en-gb/requests/new.