I know this is an old post but I have recently run into the same issue. I have tried starting BnS multiple times, have scanned the files a few times and have also uninstalled and reinstalled the game twice but, to no avail. The issue seems to have started after the latest ".net" framework update of windows from 4/2019. This is NOT the only game affected. Also, Bless online fails at the splash screen, Tera will start but crashes upon NPC interaction, Neverwinter will not start as well. Therefore I am assuming it is something having to do with windows. Might anyone be able to shed some light on this problem?