Changing Note Groups doesn't affect files created with older versions of MuseScore
Reported version
3.2
Type
Functional
Frequency
Many
Severity
S3 - Major
Reproducibility
Always
Status
needs info
Regression
Yes
Workaround
No
Project
Since version 3.2 the Note Group settings in the Time Signature Properties refuse to change the stems in sheet music created before MuseScore 3.2 and/or imported and saved with 3 or 3.1
Steps to reproduce:
1) Open old sheet (ideally a song created with MuseScore 2 and imported and saved with MuseScore 3.1)
2) Right click time signature and open Time Signature Properties
3) Change Note Groups
4) Click ok
Comments
Works fine for me, most likely it something about your specific score (like maybe you have overridden the beams on the specific notes, or they came from MusicXML where they are already fixed). In order to investigate, we would need you to attach your score.