When I change my app permissions from R+W to RO, existing user can not sign in anymore unless I manually delete the permissions in https://twitter.com/settings/applications for the specific user and app. The application is allowed to be used to Sign in with Twitter.
When I try to sign in, it asks me to authorize the app (even if it’s already authorized with wider permissions for the current user) and if I click on Sign In… it refreshes the page and does nothing.
Any idea?