Fails to load in 2021.3.6f1

Map magic version 2.1.10 fails to load in Unity 2021.3.6f1 running on ubuntu 22.04

Steps to reproduce:
1. Start New Project.
2. Create New Graph "Empty/Simple"

Error in console:

Exception: Could not find type for: MapMagic.Nodes.ObjectsGenerators.Split200+SplitLayer, MapMagic, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
Den.Tools.Serializer.DeserializeObject (System.Int32 refId, Den.Tools.Serializer+Object[] serialized, System.Object[] deserialized, System.Object[] reuse, System.Action`1[T] onBeforeDeserialize) (at Assets/MapMagic/Tools/Serializer.cs:643)




Den.Tools.Serializer.DeserializeObject (System.Int32 refId, Den.Tools.Serializer+Object[] serialized, System.Object[] deserialized, System.Object[] reuse, System.Action`1[T] onBeforeDeserialize) (at Assets/MapMagic/Tools/Serializer.cs:582)
Den.Tools.Serializer.DeserializeObject (System.Int32 refId, Den.Tools.Serializer+Object[] serialized, System.Object[] deserialized, System.Object[] reuse, System.Action`1[T] onBeforeDeserialize) (at Assets/MapMagic/Tools/Serializer.cs:633)
Den.Tools.Serializer.Deserialize (Den.Tools.Serializer+Object[] serialized, System.Action`1[T] onBeforeDeserialize) (at Assets/MapMagic/Tools/Serializer.cs:191)
MapMagic.Nodes.GraphSerializer200Beta.Deserialize (MapMagic.Nodes.Graph graph) (at Assets/MapMagic/Nodes/GraphSerializer.cs:60)
MapMagic.Nodes.Graph.OnAfterDeserialize () (at Assets/MapMagic/Nodes/Graph.cs:1172)

Any help to fix this issue