Notification gesture freezing bug

On my Forerunner 55, I have issues with the open on gesture notification behavior.

When there is a notification waiting to be shawn, if I  shake the hand multiple times, it totally freeze. I have to restart the watch by shutting down holding long the power button.

I do not know if it is the place to report it, but here it is. I hope some Garmin dev could fix it.

Cheers