Random node issue

I'm using the 2019.3.0f3 and the Random Node gives me the next error.

Steps to reproduce the issue:
- create a new map magic terrain
- use the random node to spawn objects
Unity console gives me this errors, and map magic stops the compilation.

Thread failed: System.NotImplementedException: The method or operation is not implemented.
at MapMagic.Nodes.ObjectsGenerators.RandomObjects200.Generate (MapMagic.Products.TileData data, MapMagic.Products.StopToken stop) [0x0006c] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Runtime\Generators\Objects\ObjectsGenerators.cs:75
at MapMagic.Nodes.Graph.GenerateRecursive (MapMagic.Nodes.Generator gen, MapMagic.Products.TileData data, MapMagic.Products.StopToken stop) [0x001a1] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Runtime\Generators\Graph.cs:659
at MapMagic.Nodes.Graph.GenerateRecursive (MapMagic.Nodes.Generator gen, MapMagic.Products.TileData data, MapMagic.Products.StopToken stop) [0x000a6] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Runtime\Generators\Graph.cs:638
at MapMagic.Nodes.Graph.GenerateRecursive (MapMagic.Nodes.Generator gen, MapMagic.Products.TileData data, MapMagic.Products.StopToken stop) [0x00055] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Runtime\Generators\Graph.cs:631
at MapMagic.Nodes.Graph.Generate (MapMagic.Products.TileData data, MapMagic.Products.StopToken stop) [0x00041] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Runtime\Generators\Graph.cs:613
at MapMagic.Terrains.TerrainTile.Generate (MapMagic.Nodes.Graph graph, MapMagic.Terrains.TerrainTile tile, MapMagic.Terrains.TerrainTile+DetailLevel det, MapMagic.Products.StopToken stop) [0x00052] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Runtime\Terrains\TerrainTile.cs:649
at MapMagic.Terrains.TerrainTile+c__DisplayClass37_0.b__0 () [0x00000] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Runtime\Terrains\TerrainTile.cs:557
at Plugins.Tasks.ThreadManager.TaskThreadAction (Plugins.Tasks.ThreadManager+Task task) [0x00002] in D:\Unity Projects\HDRP Test\Assets\MapMagic\Tools\Runtime\ThreadManager\ThreadManager.cs:125
UnityEngine.Debug:LogError(Object)
Plugins.Tasks.ThreadManager:TaskThreadAction(Task) (at Assets/MapMagic/Tools/Runtime/ThreadManager/ThreadManager.cs:128)
System.Threading.ThreadHelper:ThreadStart()