Has anyone iwachtr broken?

[m3003]

I have iwatchr on my iPhone and updated it yesterday now I can't record my weight?!?!? When I press "+" like it says it just comes up with the date and that's it. Anyone know where I'm going wrong?
M3003

 

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[Rissole76]

You enter the date then save,, then tap on that date to record the weight x