Hey Hianalytics,
5). This is indeed a bug, my apologies and thank you for reporting! I’ve developed a fixed file which I’ve uploaded here. Please download the archive, unzip it, and upload the contained file into the theme folder (/wp-content/themes/Kanso/), replacing the existing file. The menu links outside the one-page template should work like in the theme demo now. Let me know if it helps!
6). Which version of the theme do you have? If it is 1.0 or 1.1, please update to 1.2 (the newest version is always available in the Downloads tab of your ThemeForest account).
Sincerely,
Andrii / Satori Studio