I can not do Security debug because i can only see "System objects", "Cache items" and "Worker threads" in Debug interface. Yes the user Privilege level is "Editor". When we were using Kentico 6.0.34 this user was only able to see "Orders" in E-commerece Tab and "Forms" in Tools tab. But after we upgraded to Kentico 8.2.33 this user is able to see many other sections also. So when i compare Kentico 8.2.33 and 6.0.34 settings the only difference i found is that in old kentico "Enable UI personalization" was checked but it is not checked in new kentico. So when i tried to check this option in new kentico. After that the user was not able to login into the CMS so again i unchecked that option.
For more information on this you can see my Ticket# 685856 which i have created in Kentico Support. In that i have attached screenshots also.
Can you please advise.