将CKAsset保存到CloudKit中的CKRecord会产生错误：“没有收到资产的authToken”

当我尝试将CKAsset保存到CKAsset时，这是完整的错误消息。 我以前没有看到过这个错误，也不能在任何地方find任何有关它的信息。

有没有人听说过这个？

 <CKError 0x17064ccf0: "Partial Failure" (2/1011); "Failed to modify some records"; partial errors: { 4B1CD9BE-3B67-49C5-AC39-F8379A5041C9:(_defaultZone:__defaultOwner__) = <CKError 0x174451a90: "Internal Error" (1/1000); "No authToken received for asset"> AC51EFE8-E370-4286-9510-B86B24855BE8:(_defaultZone:__defaultOwner__) = <CKError 0x174451880: "Internal Error" (1/1000); "No authToken received for asset"> D52322DA-2E13-46EF-B58F-9B74D97CE876:(_defaultZone:__defaultOwner__) = <CKError 0x174451430: "Internal Error" (1/1000); "No authToken received for asset"> }>