Every once in awhile, I notice that my Apple Watch won't recognize the fact that I did my two minutes of standing in an hour. It usually goes like this: I'll get the notification 50 minutes into the hour telling me to stand up and I will comply for 5 minutes and it doesn't recognize. Sometimes, I'll stand and walk around for the whole ten minutes and it won't recognize it. Stranger than that is the fact that it'll do this sporadically for a whole day and then cease to do it for weeks. Anyone else experience this?