Office365 graph delete task push notifications issue

Question

We are using this graph API to create a subscription. For the delete task event, we are not receiving any notification from Microsoft. We are receiving the same for creating and updating the task.

We created the subscription using graph beta API. Even in graph beta API, we didn't receive the notification for delete task event from Microsoft.

We have attached the request details. Please advise on this.

Request url : https://graph.microsoft.com/beta/subscriptions

Request Body: {"notificationUrl":"<development-url>/notifications/office365/graph/v1","expirationDateTime":"2022-06-01T04:15:43Z","resource":"/me/todo/lists/{taskListId}/tasks","changeType":"deleted","clientState":"<client-state>"}

Note: As we are in the process of migrating Outlook to Graph APIs, we are stuck in the middle of process due to this issue. Without this feature, we can't migrate outlook to graph API. So please look into this with high priority.

Kindly assist us further. Thanks in advance.