Activities and Custom Workouts Disappeared on Garmin Instinct 2 Solar

Hi everyone,

I’ve encountered a strange issue with my Garmin Instinct 2 Solar. During a scheduled strength workout, about 1 hour and some  minutes into the session, I paused it to check a video on my phone for exercise form. When I returned to the watch, it seemed to have entered sleep mode or something similar. I tried to resume the workout, but the activity was completely gone—it wasn’t deleted or discarded by me.

On top of this, a previous activity I had just finished before the one I was recording also disappeared. I then looked for the other activities and custom trainings that I created. All of my previous activities disappeared from the watch, including the custom strength workouts I had created and sent from Garmin Connect. I tried the usual fixes:

  • Restarting the watch

  • Syncing with Garmin Connect and Garmin Express (no data appeared)

  • Checking the ACTIVITY folder on my computer (empty)

Has anyone experienced a similar issue? Any suggestions on how to recover or prevent this from happening again?

Thanks in advance!