The Encryption key error on MacOS - UE5.5 with FMOD 2.03.08

I’d like to report a bug found in Unreal Engine 5.5 and FMOD Studio 2.03.08.
The issue is related to the Encryption Key on macOS.

When the Encryption Key is applied, audio in the banks cannot be read. The following errors appear in the log:

LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/core_api/src/fmod_codec_oggvorbis.cpp(358) - failed to open as ogg
LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/core_api/src/fmod_codec_mod.cpp(1246) - ‘M.K.’ etc ID check failed [D??]
LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/core_api/src/fmod_codec_s3m.cpp(1546) - ‘SCRM’ ID check failed [???]
LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/core_api/src/fmod_codec_xm.cpp(2205) - 'Extended Module: ’ ID check failed [FAC/]
LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/core_api/src/fmod_codec_it.cpp(4093) - ‘IMPM’ etc ID check failed [FAC/]
LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/core_api/src/fmod_codec_midi.cpp(2859) - ‘HThd’ ID check failed [FAC/]
LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/core_api/src/fmod_codec_mpeg.cpp(481) - failed to open as mpeg
LogFMOD: Error: /opt/teamcity-agent/work/c1c3f17eb167c494/studio_api/src/fmod_resource_loader.cpp(620) - Failed to load waveform {3d2408d2-4ab3-473d-8668-71cff64123fc}

The same project works correctly and produces sound on Windows.
However, if the Encryption Key is completely removed and the project is rebuilt on macOS, the sound plays normally again.

Hi,

Thank you for bringing this to our attention.

I have been able to reproduce the issue and have passed it into our development team to investigate further.

Unfortunately, I do not have a workaround at the current time.