System.TypeInitializationException ----> System.DllNotFoundException : e_sqlite3

I have installed the sqlite-pcl-net package (1.5.166-beta) into my (NUnit 3) unittest project. When running it from a Windows machine there is no problem at all. When I start running it from my Macbook then I get the following exception:

1. Error : MyUnittest System.TypeInitializationException : The type initializer for 'SQLite.SQLiteConnection' threw an exception.
   ----> System.DllNotFoundException : e_sqlite3
   at <0x00000 + 0x00000>
   at MyUnitTest () [0x00067] in <96f31be6e71a42f5b7ad9b980609362a>:0
   at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
   at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in :0
   --DllNotFoundException
   at (wrapper managed-to-native) SQLitePCL.SQLite3Provider_e_sqlite3+NativeMethods:sqlite3_libversion_number ()
   at SQLitePCL.SQLite3Provider_e_sqlite3.SQLitePCL.ISQLite3Provider.sqlite3_libversion_number () [0x00000] in <3cda1046b2804ce4a20e43f25d72d618>:0
   at SQLitePCL.raw.SetProvider (SQLitePCL.ISQLite3Provider imp) [0x00008] in <73e712ea9d1b47d7be4afb0c91ae9225>:0
   at SQLitePCL.Batteries_V2.Init () [0x00005] in <9806960da759467bb986d04e57c12bfa>:0
   at SQLite.SQLiteConnection..cctor () [0x00010] in <6b601bb3cfca434998e9c907b07b19b9>:0

When i downgrade the package to the stable version than this issue is gone. (I'm using the beta version because of issues with support for nullable enums in the stable version)

I have tried to manually include the x86/x64 e_sqlite3.dll to the root of the bin folder but that didn't make any difference.

Start by reproducing the NUnit 3 failure on macOS with sqlite-pcl-net 1.5.166-beta, then inspect SQLite.SQLiteConnection, SQLitePCL.Batteries_V2.Init, and the SQLitePCL.SQLite3Provider_e_sqlite3 entry point shown in the trace. Done means the beta package loads e_sqlite3 on macOS and the test runs without DllNotFoundException while retaining nullable-enum support.