It seems to have resolved itself… another mystery… LOL
Hi and thanks for the reply. I needed the session ID in raw format to share it with a .Net application – and also needed the session ID to be removed once a user logs out (which WP doesn’t seem to do for some reason). Its a weird setup, but I actually figured out how to fix my own problem. I just changed ‘wp_clear_auth_cookie()’ to ‘clear_auth_cookie’ and now it works. Go figure!