I have written the section access in my application, while the user tries to log in they are getting message "Access Denied".
I restricted my login(administrator) in section access and validate it in the application. Section access is successfully applied in my login. For other users, they are getting "Access Denied" message.
Also, I'm using the Binary function in my script. The section access is defined after the binary load.
Can you try adding using * for administrator(as highlighted in the below code) and login in with administrator access and check the app. In that way you will be sure the section access works, then we could dig into the data reduction part