Relations DeSerialized incorrectly

[TylerMartin31nh52]

using version 3.4.2 (not unity package)

first relation of an object is DeSerialized as a component? i don't know

using System.IO;
using UnityEngine;
using Friflo.Engine.ECS; //ver 3.4.2
using Friflo.Engine.ECS.Serialize;
public struct RelationA : IRelation<int>
{
    public int key;
    public int data;
    public int GetRelationKey()
    {
        return key;
    }
}
public class RelationTest : MonoBehaviour
{
    private void Awake()
    {
        Test();
    }

    public void Test()
    {
        var store = new EntityStore();
        var entity1 = store.CreateEntity();

        entity1.AddRelation(new RelationA { key = 1, data = 1 });

        EntitySerializer ser = new EntitySerializer();
        var stream = new MemoryStream();
        ser.WriteStore(store, stream);

        var store2 = new EntityStore();
        ser.ReadIntoStore(store2, stream);

        foreach (var e in store.Entities)
        {
            Debug.Log($"{e.DebugJSON}");
        }

        foreach (var e in store2.Entities)
        {
            Debug.Log($"{e.DebugJSON}");
        }
    }
}

Output 1:

{
    "id": 1,
    "components": {
        "RelationA": [{"key":1,"data":1}]
    }
}

Output 2:

{
    "id": 1,
    "components": {
        "RelationA": {"key":0,"data":0},
        "RelationA": [{"key":1,"data":1}]
    }
}

the "duplicated" relation appears in entity.Components but not in entity.GetRelations<RelationA>()
this also deletes one relation if 2 different relation structs are added to the entity