State tax filing

My taxes were accepted on 1.31.18.  I claimed  Dependent care and the EIC. This is the 3rd or 4th year of being manually reviewed. 1 year they requested everything under the sun to prove i paid child care and the other years they didnt request anything they just changed my status from being manually reviewed to processing with no explanation as to why it was being manually reviewed to begin with.  My mother is also in manual review this year. Is this just standard for Oregon to do this once taxes are selected for manual review? Does that mean they need additional information or does this just mean it's being process by an employee and to wait the 12 weeks for processing? Does anyone know? It's frustrating i almost want to write a letter and tell them to keep their damn refund and stop wasting my time with bs.