Notification Number Not Decreasing For Workflow

Frappe v10.1.58 (master)
Erpnext v10.1.66 (master)

When a record is created which needs to be approved:

A user with the purchase manager role gets the notfication for the purchase order

After approving it, the notification count remains at 5 instead of decreasing

How do I ensure the notification count reduces as the pending workflow actions are resolved?

Have you tried clearing cache?

Yes, I have cleared cache and restarted bench, the count didn’t reduce