git commit notification failed to be mailed

Hello! I pushed a commit to the public git repository for my project, but I haven't yet received the usual commit notification e-mail message.

I have just checked: project settings -> integrations -> project services -> emails on push is still active and should still send notifications to dispatch@tracker.debian.org.

I believe to be still subscribed to the distro tracker notifications. Everything used to work up to the previous pushed commit, but failed to work for the latest one...

What happened? Is there anything I did the wrong way?

Please let me know, thanks for your time and for any help you may provide. Bye!