有一笔微信支付服务商下的子商户（商家）订单，分账接口 https://api.mch.weixin.qq.com/v3/ecommerce/profitsharing/orders 的响应

{"order_id":"30002104472024102975018170290","out_order_no":"PB4200002429202410261636503081","receivers":[{"amount":xxx,"description":"xxx","detail_id":"36002104472024102907520113399","finish_time":"1970-01-01T08:00:00+08:00","receiver_account":"xxx","receiver_mchid":"","result":"PENDING","type":"PERSONAL_OPENID"}],"status":"PROCESSING","sub_mchid":"xxx","transaction_id":"4200002429202410261636503081"}`

后来把金额全解冻给子商户，查询接口 ecommerce/profitsharing/orders?out_order_no 的响应：

{"finish_amount": xx,"finish_description": "xx","order_id": "30002104472024102975014495855","out_order_no": "PC4200002429202410261636503081", "receivers": [],  "status": "FINISHED", "sub_mchid": "xx", "transaction_id": "4200002429202410261636503081"}`

请问：

1. PENDING 的分账，是什么原因引起的？这笔分账是一直挂账在系统中吗？
2. 商户号后台 https://pay.weixin.qq.com/ 中，哪里可以查询到这笔解冻 （4200002429202410261636503081 / 30002104472024102975014495855）的情况？(不是用接口查询，是商家自己想要在商户号后台中查询得到)。

谢谢！