I am using the V.3.5.1 and the issue i am facing is that. The Option Pages are crated fine by the "register_options_page" function but when i tried to associate the "Custom Field Group" with the particular Option page it doesn't work for me.
I created some fields and also set the rules to the Option page , then when i click in the particular option page from the left menu it simply says "No Custom Field Group found for the options page. Create a Custom Field Group".
Any suggestions regarding this.