You may be seeing information carried over from last year. Please go into your "wages & income" section to delete any blank W-2s before taking a snap shot of this year's W-2. This will ensure no duplicate information.
Please follow instructions in the link below to import your W-2 by taking a photo of it.
https://ttlc.intuit.com/questions/2938482-how-do-i-take-a-picture-of-my-w-2-in-turbotax-online
