I've had my Forerunner 245M a few months and has worked fine up to now. Tonight I set it to record an activity. That activity recorded fine; however afterwards my watch is 'missing' other sets of data. It isn't showing any steps or calories I'd already completed the same day (it was like I'd started from scratch again when the activity started) and all my previous intensity minutes from the week have also been deleted. However all previous activities are showing up in the watch and all stats (steps, calories, intensity minutes) are correct in the app. I've tried syncing my watch with the app, restarting my watch, changing the settings for 'first day of the week', checking date/time are set to auto and i've even been outside and started another activity to allow GPS to connect for date/time - none of it has worked. I'd really like to get my stats back and work it out so this doesn't happen again.