Notifications not working for branch

Setup: Angular project with TS, Azure DevOps, Master and Develop branch, subscribed to all notifications for all the projects.

Notifications are not sent, any kind, any combination of task/assign/comment/user, for the Develop branch.
A merge of Develop into Master sent notifications, albeit weird ones as it reported 15 code smells vs 81 code smells in Develop.

Are the notifications working only for the Master branch?

Hey there.

Indeed, today, e-mail notifications are only sent on the main branch.