L2 application for minor when parents are divorced

Primay applicant(mother) has l1a approved. Minor daughter’s dependent visa is pending. While applying for l2, father’s passport copies can’t be submitted as his whereabouts are not known. Court order does not mention custody rights. Divorce agreement signed between both parties state that primay applicant(mother) has custody and can take the child abroad. In this situation, will l2 visa application be granted?

I think mother should have no problem