BeejayFagab

I applied for ir1 Visa and got documentarily qualified in March 2021. I was invited for an interview at Lagos Consulate last week. When I got there, I submitted all the necessary documents that was requested. And I answered all the questions to the best of my knowledge. It got to a stage the consular left me for some minutes and came back to continue with the questions. At the end he handed me a white paper, and told me they will get back to me. When I read the white paper she marked the section where " Your visa application is refused for administrative processing, you will be informed when the processing is complete" is written. The second day I received a phone call from the consulate inviting me for another scheduled interview, and that my wife in USA will be called for interview as well. Please does anyone has this same experience in the past? what triggered the second interview and what are the likely questions they would ask? And what does administrative processing entails?