You can still claim her if she is your dependent. She will need to amend her return and select that someone can claim her as a dependent since she is your dependent. You can go ahead and add her as your dependent as long as she qualifies. You would just need to mail your return since her social security number has been filed electronically for the year.
WAIT until you receive your refund and then
Amend.
Follow these steps
to amend: https://ttlc.intuit.com/replies/3288565
