Alert Notification firing twice on Teams

Hi Team,

I have configured alert to verify and fire on every 1 hour but some how two alerts notification are getting fired at the same time.

These are my configuration screenshots:


Can anyone please assist me on this.

Regards,
Zeeshan

Hi! What are the Timing options in your notification policy?

PFA

Thank you! And to confirm you have no other notification policies?

along with that I have added this matching labels policy.

Facing similar issue with Slack. Alerts firing twice under 5mins through webhook. Any resolution?