diff --git a/src/Tests-internal/ECS/Test_SerializeLinkComponent.cs b/src/Tests-internal/ECS/Test_SerializeLinkComponent.cs
new file mode 100644
index 00000000..b7020d7a
--- /dev/null
+++ b/src/Tests-internal/ECS/Test_SerializeLinkComponent.cs
@@ -0,0 +1,61 @@
+using Friflo.Engine.ECS;
+using Friflo.Engine.ECS.Serialize;
+using NUnit.Framework;
+using Tests.ECS.Index;
+using Tests.ECS.Serialize;
+using static NUnit.Framework.Assert;
+
+
+// ReSharper disable InconsistentNaming
+namespace Internal.ECS {
+
+public static class Test_SerializeLinkComponent
+{
+   
+// referenced entity 1002 is loaded after loading its LinkRelation
+// The fields of store.nodes[1002] .isLinked & .isOwner are assigned
+private const string Json =
+@"[{
+    ""id"": 1,
+    ""components"": {
+        ""LinkComponent"": {""entity"":1002}
+    }
+},{
+    ""id"": 1002
+}]";
+
+
+    [Test]
+    public static void Test_SerializeEntity_read_present()
+    {
+        var store       = new EntityStore();
+        var serializer  = new EntitySerializer();
+        var stream      = Test_Serializer.StringAsStream(Json);
+        
+        var result = serializer.ReadIntoStore(store, stream); // referenced EntityReference.entity 1002 is already deserialized
+        IsNull(result.error);
+        
+        AreEqual(2, store.Count);
+        
+        var entity1 = store.GetEntityById(1);
+        AreEqual(1002, entity1.GetComponent<LinkComponent>().entity.Id);
+        
+        var attackBit = 1 << StructInfo<LinkComponent>.Index;
+        AreEqual(attackBit, store.nodes[1].isOwner);
+        AreEqual(attackBit, store.nodes[1002].isLinked);
+        
+        Entity entityRef = store.GetEntityById(1002);
+        IsFalse(entityRef.IsNull);
+        
+        var incomingLinks = entityRef.GetIncomingLinks<LinkComponent>();
+        AreEqual(1, incomingLinks.Count);
+        AreEqual(1, incomingLinks[0].Entity.Id);
+        
+        entityRef.DeleteEntity();
+        
+        IsFalse(entity1.HasComponent<LinkComponent>());
+    }
+
+}
+
+}
\ No newline at end of file
diff --git a/src/Tests/ECS/Serialize/Test_EntitySerializer.cs b/src/Tests/ECS/Serialize/Test_EntitySerializer.cs
index 41a7f9e6..22f73790 100644
--- a/src/Tests/ECS/Serialize/Test_EntitySerializer.cs
+++ b/src/Tests/ECS/Serialize/Test_EntitySerializer.cs
@@ -113,6 +113,7 @@ public static void Test_Serializer_read_into_store()
             var fileName    = TestUtils.GetBasePath() + "assets/read_scene.json";
             var file        = new FileStream(fileName, FileMode.Open, FileAccess.Read);
             var result      = serializer.ReadIntoStore(store, file);
+            IsNull(result.error);
             file.Close();
             AssertReadIntoStoreResult(result, store);
         }
@@ -289,6 +290,7 @@ public static void Test_Serializer_read_unknown_JSON_members()
         var fileName    = TestUtils.GetBasePath() + "assets/read_unknown_members.json";
         var file        = new FileStream(fileName, FileMode.Open, FileAccess.Read);
         var result      = serializer.ReadIntoStore(store, file);
+        IsNull(result.error);
         file.Close();
         AssertReadIntoStoreResult(result, store);
     }
diff --git a/src/Tests/ECS/Serialize/Test_SerializeEntity.cs b/src/Tests/ECS/Serialize/Test_SerializeEntity.cs
index e34c74e3..c681ae77 100644
--- a/src/Tests/ECS/Serialize/Test_SerializeEntity.cs
+++ b/src/Tests/ECS/Serialize/Test_SerializeEntity.cs
@@ -65,7 +65,8 @@ public static void Test_SerializeEntity_read_present()
         var serializer  = new EntitySerializer();
         var stream      = Test_Serializer.StringAsStream(JsonEntityRefPresent);
         
-        serializer.ReadIntoStore(store, stream); // referenced EntityReference.entity 1002 is already deserialized
+        var result = serializer.ReadIntoStore(store, stream); // referenced EntityReference.entity 1002 is already deserialized
+        IsNull(result.error);
         
         AreEqual(2, store.Count);
         
@@ -83,7 +84,8 @@ public static void Test_SerializeEntity_read_missing()
         var serializer  = new EntitySerializer();
         var stream      = Test_Serializer.StringAsStream(JsonEntityRefMissing);
         
-        serializer.ReadIntoStore(store, stream);
+        var result = serializer.ReadIntoStore(store, stream);
+        IsNull(result.error);
         
         AreEqual(1, store.Count);
         
@@ -100,7 +102,8 @@ public static void Test_SerializeEntity_read_not_present()
         var serializer  = new EntitySerializer();
         var stream      = Test_Serializer.StringAsStream(JsonEntityRefNotPresent);
         
-        serializer.ReadIntoStore(store, stream);
+        var result = serializer.ReadIntoStore(store, stream);
+        IsNull(result.error);
         
         AreEqual(2, store.Count);
         
@@ -117,7 +120,8 @@ public static void Test_SerializeEntity_read_null()
         var serializer  = new EntitySerializer();
         var stream      = Test_Serializer.StringAsStream(JsonEntityRefNull);
         
-        serializer.ReadIntoStore(store, stream);
+        var result = serializer.ReadIntoStore(store, stream);
+        IsNull(result.error);
         
         AreEqual(1, store.Count);