NewNPC always contains Marketboard and Summoning Bell

[ghost]

I found that NewNPC always contains Marketboard and Summoning Bell.
This problem always occurs when the character is near the market.

Code:

ActorReadResult readResult = Reader.GetActors();
foreach (var id in readResult.NewNPC)
{
    string strNPC = "NPC => ID: " + id + ", Name: " + readResult.NPCEntities[id].Name;
    Console.WriteLine(strNPC);
}

Result:

NPC => ID: 2000402, Name: マーケットボード
NPC => ID: 2000401, Name: 呼び鈴
NPC => ID: 2000402, Name: マーケットボード

Remarks:
"Marketbord" is "マーケットボード" in Japanese.
"Summoning Bell" is "呼び鈴" in Japanese.

[ghost]

ActorReadResult.RemovedNPC type is Dictonary disallowing duplicate keys.
But ActorReadResult.NewNPC type is List allowing duplicate values.

This issue may occur if an object with the same key exists in memory.