I didn't follow that. Are you sure you couldnt claim them last year? Then why can you claim them again this year?
Even if you didn't claim them last year they might have to say they CAN be claimed.
Here are the rules for claiming a dependent. Did they qualify as your dependent?
https://ttlc.intuit.com/community/credits-and-deductions/help/who-can-i-claim-as-my-dependent/00/267...
