Slim, as I said before (can't remember where), Reaver 1.4 has difficulties with certain APs. I find it useful (necessary) to use reaver 1.3, reaver 1.4 fork r3, or bully.
Any chance you could incorporate reaver 1.3 and, reaver 1.4 fork r3 in FS? Otherwise I have to un/install reaver.