Unable to access the EndPoints and collection variables details in master branch though I have been given Edit access. When I click on The end point I see blank page. When i access through browser I am able to access.
Hey @manjula-devi 
Welcome to the Postman Community! 
Are you using the latest version of Postman here? Have you tried the Clear Cache and Reload option from the main client window menu?
It’s tough to see what’s happening here as the image isn’t showing the full app window.