To me this happened during my last run. I started the activtiy "running" on the Venu 2. During my run I had to jump some steps and the watch suddenly showed the "Incident detection".
I wanted to discard it by swiping but it did not work. Instead of discarding the watch restarted.
I was surprised but the recording of my run was still ongoing after the restart so I could normally resume my run.
Still it would be interesting if someone else had this?
False incident detection, Discarding not possible, Watch restarts.