微信公众号模板消息，发送成功，但用户说没有收到，批量发送的，就有个别没有收到，这是为何？

调用数据与返回数据如下：

[POSTDATA] {"touser":"oyB3Ls4yfUrXCNqUmoDiqRumoJBg","template_id":"c2VDPd2V8Xy_a2kYDoLq6mKVO91ydI9JaD2_brXFNQo","url":"","topcolor":"#FF683F","data":{"first":{"value":"您好,亲爱的陆思琪家长,您的孩子已到达学校;","color":"#ff9900"},"childName":{"value":"陆思琪","color":"#173177"},"time":{"value":"2020-11-05 07:12:59","color":"#173177"},"status":{"value":"进校","color":"#173177"},"remark":{"value":"","color":"#ff9900"},"content":{"value":""}}} [RESPONSE] {"code":"200","status":"OK","responseline":"HTTP/1.0 200 OK","headers":{"Connection":"close","Content-Type":"application/json; encoding=utf-8","Date":"Wed, 04 Nov 2020 23:15:02 GMT","Content-Length":"55"},"content":"{\"errcode\":0,\"errmsg\":\"ok\",\"msgid\":1592819354042204162}","meta":"HTTP/1.0 200 OK\r\nConnection: close\r\nContent-Type: application/json; encoding=utf-8\r\nDate: Wed, 04 Nov 2020 23:15:02 GMT\r\nContent-Length: 55\r\n\r\n{\"errcode\":0,\"errmsg\":\"ok\",\"msgid\":1592819354042204162}"}