新人，仿照非官方帮助文档的图片部分写法，文字发送成功了，图片没有发送，但是日志上面显示发送了。问题和这类似，按照大佬的解答没能解决，希望得到帮助。
代码：

this.globalEventChannel().subscribeAlways<GroupMessageEvent> { event -> if (message.contentToString() == "#tx") { var contact = event.group var ex = File("D:\\tx.jpg").toExternalResource("jpg") var img = contact.uploadImage(ex) ex.close() contact.sendMessage(img) contact.sendMessage("tx") } }

日志：

2022-01-04 V/Bot.xxxx: [开发测试(xxxx)] yuhanzero(xxxx) -> #tx 2022-01-04 V/Bot.xxxx: Event: BeforeImageUploadEvent(target=Group(xxxx), source=net.mamoe.mirai.internal.utils.ExternalResourceImplByFile@165ad5e7) 2022-01-04 V/Bot.xxxx: Event: Succeed(target=Group(xxxx), source=net.mamoe.mirai.internal.utils.ExternalResourceImplByFile@165ad5e7, image=[mirai:image:{DC3BA8C8-0E76-6F68-349F-919A0E78147B}.jpg]) 2022-01-04 V/Bot.xxxx: Event: GroupMessagePreSendEvent(target=Group(xxxx), message=[mirai:image:{DC3BA8C8-0E76-6F68-349F-919A0E78147B}.jpg]) 2022-01-04 V/Bot.xxxx: Group(xxxx) <- [mirai:image:{DC3BA8C8-0E76-6F68-349F-919A0E78147B}.jpg] 2022-01-04 V/Bot.xxxx: Event: GroupMessagePostSendEvent(target=Group(xxxx), message=[mirai:image:{DC3BA8C8-0E76-6F68-349F-919A0E78147B}.jpg], exception=null, receipt=net.mamoe.mirai.message.MessageReceipt@1363a1e1) 2022-01-04 V/Bot.xxxx: Event: GroupMessagePreSendEvent(target=Group(xxxx), message=tx) 2022-01-04 V/Bot.xxxx: Group(xxxx) <- tx 2022-01-04 V/Bot.xxxx: Event: GroupMessagePostSendEvent(target=Group(xxxx), message=tx, exception=null, receipt=net.mamoe.mirai.message.MessageReceipt@46da27a8)