report subscription email dissappeared

Email subscriptions seems to dissapear after a few days. In my case, the subscription is still there (and not in draft) but no daily email is sent to the users that have the subscription.

The specific report has multiple pages that are hidden (except one). The strange thing is when I try to edit the subscription in the report (Go to Settings, Subscriptions --> Edit in Report) it shows me one of the hidden pages without data. When I click on the page that isn't hidden than I get the report.

Some weeks ago, when subscriptions email were not send, we encountered the following: when we tried to edit te subscription (Go To Settings --> Subscriptions) the specific subscriptions was changed to another page in the report (this page is also a hidden page)

After a publish from Power BI Desktop, sometimes excisting subscriptions are lost and have to be configurerd again.

Please find a good solution. Our customer is a big fan of the subscriptions features and want to use it on daily bases to discuss results with colleagues...