Mutations Not working from dgraph ratel ui

1.We have two dgraph instances one for development and another for Qa and facing problem
to run mutations in both development and Qa dgraph .

2.Screen shots which i have shared previously were from development dgraph.

3.We have configured external port as 7070 in development dgraph.

4.For Qa dgraph we have same 8080 port but still facing unable to run mutations.

here is the screen shots for Qa -dgraph

Login

GetQuery

Mutations

5.from past 2 or 3 weeks we are facing this problem in both environments dev and qa(dgraph ratel ui asking credentials and unable to run mutations)

6.Both Qa and Development Dgraph have same versions

Version: 1.0.14