Scriptable object attribute gets reset

[musjj]

I have a scriptable object like this:

using System;
using System.Collections.Generic;
using Alchemy.Serialization;
using UnityEngine;

[CreateAssetMenu(fileName = "FooSO", menuName = "Scriptable Objects/FooSO")]
[AlchemySerialize]
public partial class FooSO : ScriptableObject
{
    [AlchemySerializeField, NonSerialized]
    public HashSet<BarSO> BarSOs;
}

BarSO here is another normal non-Alchemy scriptable object. Sometimes when restarting the editor or switching scenes, all scriptable object assets derived from FooSO gets their BarSOs attribute reset to null.

I'm not sure how to reproduce it, but it seems to happen pretty frequently.

[JustinPrat]

If you want a quick fix, you can add
#if Unity_editor
unity function : OnValidate
-> EditorUtility.SetDirty(FooSO)
#endif

It should save the asset