I have reflect this problem to Microsoft Support Team, but they ask me to post the idea here that everyone who has the same problem can track this issue at the same time. Let me explain the problem. The situation is, if one create one's own report/dashboard with custom visuals, the "enable custom visualization warning" will appear in the browser normally. However, if one views a report/dashboard including custom visuals via content packs which is published by other people, the "enable custom visualization warning" will NOT appear. Microsoft said the product group is aware of this feature gap and is working together to implement this fuction. Hope this problem can be solved as soon as possible.
... View more