I have noticed that issue where custom visualization are partially generated OR not generated are occuring only on the pinned custom visuals on dashboard and not on reports.
Also, today it's completely behaving unpredictable and sometime few of the custom viz are not shown on dashboard with errors on console as,
Sandbox plugin
XMLHttpRequest cannot load https://app.powerbi.com/undefined/explore/resourcePackageItem/669f2a91-32cb-4b50-b8cc-8322e50c8b90vETDnfahMVQCbGrM-usmdLdS8omIfQx0EMRMex2sWko%3D.js. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. The response had HTTP status code 404.
Any idea on how to fix it ?
