Tuqa Unfortunately, there have been many audio-related issues with previous versions of Spine Editor on MacOS, so it is very likely that you will need to upgrade the version of Spine Editor you are using to resolve the issue.
3.8.99 was released in September 2020 and is not guaranteed to work on new PCs such as the M2 Mac.
If you are still experiencing the issue even after updating to the latest version, please let us know.