DLL error when loading Bedrock maps

[amg-12]

On choosing a world, I get this error:

System.DllNotFoundException: Unable to load DLL 'leveldb' or one of its
dependencies: The specified module could not be found. (0x8007007E)
  at LevelDBWrapper.NativeMethods.leveldb_options_create()
  at LevelDBWrapper.Options..ctor()
  at ImageMap4.BedrockWorld.OpenDB()
  at ImageMap4.BedrockWorld.GetInventories()+MoveNext()
  at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
  at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
  at ImageMap4.MainViewModel.set_SelectedWorld(World value)
  at ImageMap4.MainWindow.TryOpenWorld(World world)

The files are extracted and the DLL is present. I'm using Minecraft Education Edition (Bedrock based).

[amg-12]

Works fine on my other machine.