Recently we have changed our organizational portal url for arcgis online. It was something like http://myold.maps.arcgis.com to http://mynew.maps.arcgis.com . After changing the new name for portal all web appbuilder apps become missing, although I can see them in my directory G:\WebAppBuilderForArcGIS\server\apps. I already registered the url to app redirect page. Also, this was the first error
"You are currently signed in as: 'irfan.afsar_myorganization'. You do not have access to this resource: https://myold.maps.arcgis.com/sharing/rest/content/items/123xyz1234abcd9879(changed)".
To fix this error I open my app config.json and changed my new portal Url in both for app and map location.
Now i can access and edit my app by direct url http://myapp:3344/webappbuilder/?id=29 .
But in the web appbuilder template no app available.
I really appreciate any help!