Muse Brass - Bugs in Trombone

There are some issues with the trombone in Muse Brass.
Whenever playing a fourth up and playing mf or louder, there are either additional notes played or a wrong rhythm is played.
I made a screenshot which shows you what it should sound like and how it does sound like.
OS: Windows 10 Version 2009 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.3.2-241630831, revision: 22b46f2