I've had my hotkeys reset, and ui, at least twice since i started. Your hotkey server may be fine, but if so something on my end acts up now and then, and resets everything.
Our web server is wildly unstable, which is probably why. That system that you posted should work fine here, you just have to set it up differently though.
In particular, the method of setting it up is totally wrong on their part, here's what you should actually do:
Unpack one of our .pack files (mabipro-1.0.pack), open up urls.xml in /data/db, then copy that to the data folder equivalent in the MabiPro installation directory.
Next, edit urls.xml and find the section for Japan, and then modify the UiUpload sections to point to 127.0.0.1 and whatever URL that hot key server emulator is expecting (which is probably the same for what NA uses).