First of all, there's some known problem regarding bnspatch on 64bit client. Second thing is that bnspatch is still in a test state. Third I said to not have any other FM 3rd spec patch/xml.
There's absolutly no change in any normal/simple mode script in any class on the last update.
If things doesn't work, either it's your fault not following instructions correctly, either it's bnspatch/incompatibility problem, then you have to wait pilao's update (don't ping him ty).
This post isn't mean to be a support post to help you with bnspatch.
If you have some trouble, you can play with the old client, here is a non official link of the old client with all lang :
https://mega.nz/folder/6tsiRBZA#dIFTAst9lgFKcCT3kjiHnw
If you use this one, delete bin and bin64, and then past "bin" "bin64" and "contents" in "NCSOFT\BNS", it will ask you to replace stuff of the "contents" folder, just say yes (don't delete "contents" folder, please).
There's a similar backup of the old client on Mod Police made by Hora if you don't trust mine. Also mine contain some plugin like lessloadingscreen etc, so check in the plugin folder. Everything is installed in the old client I posted, pluginloader & bnspatch for 32bits and 64bits (+ other plugins like I said above).
Btw, on the new client, binloader isn't working anymore, you better remove it and check if you have the last version of lessloadingscreen + f12simplemode (and login helper if you have it)
If you made the update to get the new client and after that put the old client, you will have to repear your game to get the new client back.