When I try to import activity from forerunner 210 (.fit file) it says "we do not support the file type you are trying to import" (it has always worked fine before). Sync status and software say up to date?? I have tried importing automatically and manually via browsing the files when the device is plugged in to the PC. I am using Garmin Express for Windows. I have tried this on both laptop and desktop devices and same problem. The activities are definitely recorded on the watch as they're visible when I search the files. I've turned the watch off and back on again too....any ideas??