We’ve got to the bottom of this issue for now.
If you download a zip file from the internet or even a LAN (possibly containing a Unity project with the FMOD integration already installed) and open it using a program that uses the macOS system zip functions (e.g. by simply double-clicking the zip), macOS will apply the quarantine flag to any executables and shared libraries it finds as it extracts them. This means that if you transfer a Unity project that has the FMOD integration already installed, the FMOD shared libraries within it will be quarantined on extraction and the Unity project will fail to run.
Notes :
- If you use a zip program that does not use the macOS system zip functions, the extracted files will not be quarantined. This has been confirmed with 7-Zip, for example.
- If you transfer your Unity project via github with “git clone ” instead of “Download ZIP” then the cloned files will not be quarantined.
So, my advice would be to use “git clone” if possible or, if you must use zip files, open them with a third party tool like 7-Zip.