Problem packaging in UE4 with PC and Switch as platforms

Can you open up the FMOD Studio project and do the following steps:

  1. Click on Edit > Preferences > Build
  2. Add a Switch build to the Platform list
  3. File > Save, then File > Build All Platforms
  4. After refreshing banks, try to build for Switch in the Unreal Engine 4 editor again

Please let me know if this helps.