I use MuseScore 3.6.0 Portable AppImage, inside computers with Ubuntu Studio 20.04.1 LTS (64 bit Linux flavor).
I found an specific issue with a soundfonts file, which has a very interesting good sounds.
The soundfonts file is: "MagicSFver2.sf2". And the specific issue is with the "ALTO SAX" sound. Each time I use it, I can hear a very ugly "gurgling" noise behind the main sound.
I tried to fix it with PolyPhone, elimitating the VFO frecuency parameter, but... It didn't help, at all.
Does somebody know some final solution to this problem? ???
Blessings and Greetings from Chile!!!