注意到在Samsung S7和Android v8.0上的Messages v4.0.054上HTTP-ft文件下载失败，并注意到FT认为上传成功，因此下载总是失败。
在logcat控制台上，我注意到以下错误：
03-04 21:42:56.217 26899 26941 E BugleDataModel: ReceiveRcsFileTransferAction: Cannot accept incoming File Transfer. serviceResult: Error: (Unable to find session), description: (Session ID unknown.)
03-04 21:42:56.217 26899 26941 E BugleDataModel: ReceiveRcsFileTransferAction: Cannot accept incoming File Transfer. serviceResult: Error: (Unable to find session), description: (Session ID unknown.)
03-04 21:42:56.328 26899 26941 I BugleDataModel: ReceiveRcsFileTransferAction: Received RCS FT message. message{id:403} conversation{id:1}
03-04 21:42:56.364 26899 26941 I BugleDataModel: PendingMessagesProcessor: process from ReceiveRcsFileTransferAction due to rcs received with queues: mmsMessagesToSend{size:1}
03-04 21:43:00.977 26947 28875 I BugleRcsEngine: [3323] FileTransferEngine.resumeFileTransfer: File Transfer [129] state change [RESUMED]
03-04 21:43:00.977 26947 28875 I BugleRcsEngine: [3323] FileTransferEngine.resumeFileTransfer: File Transfer [129] state change [RESUMED]
03-04 21:43:00.977 26947 28875 I BugleRcsEngine: [3323] FileTransferEngine.resumeFileTransfer: File Transfer [129] state change [RESUMED]
03-04 21:43:00.977 26899 26941 W BugleDataModel: ResumeRcsFileTransferAction: Can't find RcsFtSessionId. Mark message expired or unavailable. message{id:403}, rcsFtSessionId: 129
03-04 21:43:01.001 26899 26941 I BugleDataModel: PendingMessagesProcessor: process from ResumeRcsFileTransferAction due to rcs_ft_download failure with queues: mmsMessagesToSend{size:1}
理想情况下，客户端具有必须下载的完整下载URL。如果我在浏览器上复制URL，那就成功了。
任何人都有有关HTTP-ft上已知的任何特定故障的任何信息。