We submitted I-485, I-131(AP), I-765(EAD) early Apr to CSC, our I-131s got approved last week. However, my wife's EAD application got "requesting additional evidence or information" according to USCIS' website, no change on my EAD case yet. Since we didn't receive the notice yet, I'd like to ask people here what could be the reasons for such request, our cases are semi-concurrent (I-485 after I-140 receipt) based on LCA approval. Feel weird since our I-131s have no problem and I haven't seen RFE for EAD application on this board before.