It is possible that the Streaming Stick had either an account or update issue during setup. I think I would Factory Reset the Streaming Stick (press and hold the reset button for 30+ seconds) or use the Factory Reset option in the Settings. (Settings/System/Advanced System Settings/Factory Reset).
I would look at the Streambar Roku account from Settings/System/About (note the email address which is your Roku account), and setup/link the Streaming Stick to this same account. (ie. use this same email address when setting up the Streaming Stick).
If that does not resolve issue, and you are sure that the Streaming Stick is showing 11.5 as the OS, then it is likely that Roku Support will need to look it into further and figure out why these options aren't showing up for you.
Under the Settings/System/About what is both the model number and Operating System showing?
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660x, Premiere+ 3921, Express 4k+ 3941