I spent some time on the phone with Apple today and ended up resolving my issue. After the reference to Audacity from Marc, I installed it on my system and had the same problem with it not playing or recording. One suggestion was to create a new user account and try the programs. Musescore and Audacity both ran perfectly under the new account.
Going through a process of elimination, I found two applications were running on start up. Not recognizing them, we disabled them from running and restarted. On restart, both Musescore and Audacity run under my normal account without any issues.
This might be a step to add to your FAQ in troubleshooting, probably for both Mac and Windows.
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Jojo-Schmitz • Feb 18, 2021 - 03:58
In reply to RESOLVED! I spent some time… by Mark Kelly 3
Name those two applications that didn't belong there
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Mark Kelly 3 • Feb 18, 2021 - 17:24
In reply to Name those two applications… by Jojo-Schmitz
The problem was traced to software from Native Instruments, Komplete Kontrol. The installer for that software installs two agents to run at system startup: NIHostIntegrationAgent and NIHardwareAgent. I've communicated with Native Instruments and they confirm that these two agents apparently handle communications between their software, the system hardware and the DAW software.
I have submitted a bug report to Native Instruments as I believe their software shouldn't seize control of a system to the point that it prevents other software packages from running. My suggestion to add this step to the FAQ was to hopefully provide a step to identify any other software that might be in conflict with Musescore since it does seem to be a somewhat common issue of no sound with Musescore.
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Jojo-Schmitz • Feb 18, 2021 - 17:29
In reply to The problem was traced to… by Mark Kelly 3
Added to
https://musescore.org/en/node/96811
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