While this can be an issue on occasion, as long as you give the application enough time to connect to the server, the FTP almost always ports over. The problem occurs when the user jumps into their prescribed ride before the app has a chance to sync. It can also occur when there is no internet connection on a device before starting a workout
The issue of the OP though seems different though. His FTP reverted to an old FTP, which is not quite the same issue. Our Support Team should be able to take a closer look and get him sorted out in no time 