Same problem on macs.
MacOS 10.14.3, Xcode 10.1 on different macs.
Just try clean install UE 4.21.2, Wwise Launcher 2018.11.14.831, Wwise 2018.1.5.6835. And no luck.
Trying to download & open 'WwiseDemoGame' project or just integrate WwiseUEPlugin to clean project - same error message when UE opens project:
"Plugin 'Wwise' failed to load because module 'AudiokineticTools' could not be loaded. There may be an operating system error or the module may not be properly set up."
Another our UE projects compiles with another kind of c++ plugins and works fine. But we try wwise - no luck.
Log from UE:
[2019.02.10-01.42.15:923][ 0]LogMac: Warning: dlopen failed: dlopen(/Volumes/S1/Projects/UE/WwiseDemoGame/Plugins/Wwise/Binaries/Mac/UE4Editor-AudiokineticTools.dylib, 5): Library not loaded: @rpath/UE4Editor-MatineeToLevelSequence.dylib
Referenced from: /Volumes/S1/Projects/UE/WwiseDemoGame/Plugins/Wwise/Binaries/Mac/UE4Editor-AudiokineticTools.dylib
Reason: image not found
[2019.02.10-01.42.15:923][ 0]LogModuleManager: Warning: ModuleManager: Unable to load module '/Volumes/S1/Projects/UE/WwiseDemoGame/Plugins/Wwise/Binaries/Mac/UE4Editor-AudiokineticTools.dylib' because the file couldn't be loaded by the OS.