why does some live tiles disappear suddenly ?

[Windows Central Question]

Yesterday when I checked my Lumia 730 , some contacts which I saved as live tiles have disappeared suddenly . Contacts are there in people list , But, without the photo and few details I have selected for them.
My phone is 8.1 and I have not updated it to Win 10

 

[Chintan Gohel]

Try a soft reset and check again
Also check that your main account is syncing correctly

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