no weekly email for followers in Projects App

[Claudia Renner]

we would like to post weekly update in Projects App (Jira Cloud) to stakeholders. The stakeholders are defined as followers in the specified projects. 

The weekly digest configuration in Notifications is correct. The project is defined as "at risk". 

But only the owner receives the weekly email on Monday, not the followers. 

Can you help me to find out, what is wrong?

Thanks Claudia