Question on reported weight loss

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I have a question on the weight loss tracking. On the web interface "Home" screen, it shows I've lost 26 lbs. On the iPhone app, under "progress," it shows I've lost 26 lbs. But if I select "More" on the app, at the top it shows I've lost 22 lbs -- and what is reported out to friends is 22 lbs. Any suggestion on why the incorrect reporting of the amount of weight lost, and how to get it to correctly report the weight lost?

Thanks,

Rick