apple watch series 2 running watch os 3.1. When I tap to wake, the display only stays lit for 3-4 seconds. In settings I set it to stay on 15 seconds. I even tried setting it to stay on for 70 seconds. Still turns off. Often, it turns off even with my finger still touching the display. If I power cycle, it stays on correctly for a while... but within a day it reverts back to the quick display turn off. Anyone else having this problem?