This is potentially linked to a known issue that should be fixed soon. Can you please try the temporary fix mentioned and add the following directories in Project Settings>Packaging>Additional Asset Directories to Cook:
- FMOD/Banks
- FMOD/Buses
- FMOD/Events
- FMOD/Reverbs
- FMOD/Snapshots
- FMOD/VCAs
And let me know if Find Event by Name is still failing without the extra node?