To both of you. The AoS system is different to CP. The visas for CP cases are allocated at the time of scheduling and the total number of visas for the month are handled by the embassy. So - if they are given 20 interviews for a month with 20 selectees and 10 derivatives, they will be holding 30 visa slots. If they approve 25, and two are on AP and 3 are refused they might use the 3 for allocating to other cases from previous months that have finished AP. They then return the unused visas to KCC at the end of each month. Theoretically, if KCC could get those visas returned fast enough they could reallocate them, but, that is unlikely to happen in large numbers. AMSWEB is the visa allocation system for AoS cases. I don't know if it can draw visas from KCC - but I suspect it gets visas based on DS260 submissions (which is one other reason why filing the DS260 is worthwhile). When everything is completed on a case, the last thing they do is check AMSWEB for the visas, decrementing the available DV visas by the issued number. If the centralized system doesn't have visas available, they can't do anything. Mom, Susie and I have been "around" since 2012/2013. In that time we have not (I believe) seen this sudden stop on AoS cases. So - keep infopasses by all means and see if something changes, but we are in uncharted waters.