微信三方接收以往授权公众号语音识别结果为空

<xml><ToUserName>ToUserName>
<FromUserName>FromUserName>
<CreateTime>1596710993CreateTime>
<MsgType>MsgType>
<MediaId>MediaId>
<Format>Format>
<MsgId>22859401237401037MsgId>
<Recognition>Recognition>
xml>