公众号接口：https://developers.weixin.qq.com/doc/offiaccount/Asset_Management/New_temporary_materials.html

是一张支付宝的转账截图，原图上传时一定报异常：

{"errcode":40005,"errmsg":"invalid file type hint: [heF804104544] rid: 653a290a-2e0ec753-5add91f7"}

打开图片，把转账金额打上码，发出去就没问题。麻烦帮忙看下是啥原因