Hi,
Thank you for the information. I think this may be similar to this issue here: When windows are tabbed, FMOD UI elements are not always clickable. Which we are already looking into, I will add your information to the investigation.
Thank you for bringing this to our attention.
In the meantime if the OS allows, a workaround may be disabling the tabbing option in the macOS system preferences:
Hopefully, this should stop new FMOD windows from opening in tabs.e