Epix 2 gets stuck on LAP screen if you hit LAP and then lock device - anyone else?

I was doing a treadmill run at the gym, and put that workout on my Epix 2.

I hit the LAP button at some point, and then re-locked the device (2-button shortcut to disable/enable buttons).

I noticed that it never left the LAP screen.  I unlocked the device, pushed each button in turn, but nothing would change it from the LAP screen.

I held down the LAP button to see if that would do something, and it brought it back to the main watch screen.  I had to hit START to bring it back to the exercise (which was still ongoing).

As an experiment, I hit the LAP button, and this time DIDN'T re-lock the device; after a short delay, the screen went back to the ongoing exercise.

So it looks like there's something weird happening when the above sequence of events occurs.

Report it to Garmin, or is posting it here enough?

- Tim