Can not manually end sleep mode. Can not start an activity while in sleep mode. Trying to end sleep by pressing the start/stop button does nothing. Just keeps saying end sleep. Going into the sleep glance and trying to end it there also does nothing it keeps saying "sleeping". Turning sleep mode off from the light menu will bring up the normal watch face but the watch still thinks I'm asleep. Seems to have started after latest update. Others are also having the same problem.