After my watch was updated to version 8.21 today, I noted my "Last Activity" Gesture shows an activity from April 27th. I have daily activities since then including a 3 hour mtb ride today. I restarted the watch and also re-synched on my computer/Garmin Express with same results. Garmin Connect still shows all my activities but for some reason the software update wiped out all my activities on the Epix 2 after April 27th.