Alarms set on my Fenix 5 Sapphire gets wiped everytime I performed a sync. This just isn't right as it is causing plenty of inconveniences having to setup my alarms again after each sync. I don't have this issue initially but after setting up Garmin Connect on some settings which I couldn't exactly recall, this strange behaviour starts to happen.
Are you setting up the alarms on your WATCH or in the Garmin Connect Mobile app? I used to have this problem, but only if I set the alarms on my watch. Once I set them in the Garmin Connect mobile app, they persist and are not wiped out.
I set it up on my watch. I don't want to set up my alarms using garmin connect as it's not as convenient compared to changing the alarms on my watch. There are times when I don't have to wake up that early and sometimes there can be no consistency on my waking time. Hence, I prefer the convenience of setting it on the fly using my watch. Using Garmin Connect for this everytime will create more inconvenience as I still have to go deep into the Garmin menus on my phone to have it set up. I believe Garmin should have the capacity to resolve this seemingly small inconvenience for their users.
Plenty of other threads here in the forum on his topic some even has suggested work around a have a bit more of a poke around what device are you using