Catalogue.cs

private static void RemoveCorruptSubscriptions(string a_message)
{
    if (m_subscriptions.TryGetValue(a_message, out List<Subscription> tSub))
    {
        for (int i = 0; i < tSub.Count; i++)
        {
            try
            {
                foreach (Action<T> del in tSub[i].Callback.GetInvocationList())
                {
                    tSub[i].Callback -= del.Target.Equals(null) ? del : default;
                }

                if (tSub[i].Callback == null)
                {
                    m_subscriptions[a_message].RemoveAt(i);
                    i--;
                }

                else
                {
                    m_subscriptions[a_message][i] = tSub[i];
                }
            }

            catch (NullReferenceException)
            {
                tSub.RemoveAt(i);
                i--;
            }
        }
    }
}