Nostalrius Begins - Quality wow vanilla realm (1.12)

Everytime I log out or disconnect I lost all my shift+number and alt+number keybindings..
I have no idea whats causing it and its only those with numbers, shit+space works fine.

I had this issue too, what I had to do was to exit the client totally after i made the key-bindings in order to "save" the settings. They don't seem to be saved if it crashes or Alt-F4. Atleast it worked for me