Nothing is wrong. Let me explain it again, maybe it wasn't clear enough.
I just need a functionality where I just add the ‘meta key' for a select field I've created with ACF plugin and get all of its options that I have added already with no hassle. I really need this to work.. otherwise, it will be so hard using the plugin as is.
I need to work on your site. I want to accomplish this work. So I asked for the login details. Please send me the post form link which will help me to get the idea how you had managed to create “ACF select field”.
I have checked the ACF select field you have created. What I have got, to avail this kind of feature it is needed huge customization of the WPUF plugin. WPUF and ACF are on different coding style, different meta configuration etc.