Watchface crashing to another watchface on Epix 2 SW 16.17 beta

One of my customers is having an issue where when they start the watchface after a few minutes it crashes and goes to a different watchface.

They are running it on a Epix Gen 2 with the 16.17 beta software.

I am unable to recreate the issue with the simulator or with my Venu 2.  Any ideas what might be causing this or what I can do to troubleshoot?