Blob trigger delay and issues

We developed an Azure Function in python which is blob triggered on certain blobs. It run on a service plan.

We sometimes encounter very weird behavior of blob triggers.

**Delay**
First, there is sometimes a very huge delay between blob creation and trigger insertion. Here is a Trigger log :
```
Trigger Details: MessageId: , DequeueCount: 1, InsertedOn: 2024-02-14T12:26:28.000+00:00, BlobCreated: 2024-02-14T06:16:26.000+00:00, BlobLastModified: 2024-02-14T06:16:27.000+00:00
```
As one can see, the blob was created and last modified at 06:16, and the trigger append at 12:26pm. I can't find in the documentation any reason for such a delay.

**Really weird requeue behavior**
When function fails (for some reason that are not related to this question), the requeue behavior is not working as expected. Here are the Trigger details that I can find in my logs :
```
Trigger Details: MessageId: 399ec....identical, DequeueCount: 1, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 2, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 2, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 4, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 3, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 3, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 3, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 4, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 4, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 5, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 5, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 5, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
Trigger Details: MessageId: 399ec....identical, DequeueCount: 5, InsertedOn: 2024-02-13T11:25:32.000+00:00, BlobCreated: 2024-02-13T10:31:30.000+00:00, BlobLastModified: 2024-02-13T10:31:31.000+00:00
```

What I find very weird is that, DequeueCount is not 1, 2, 3, 4, 5 but 1, 2, 2, 3, 3, 3, etc. This make the function try 13 times instead of 5 times which is the MaxDequeueCount

#### Investigative information

Please provide the following:

- Timestamp: 2024/02/14
- Function App version: 4
- Function App name: I don't wish to disclose publicly
- Function name(s) (as appropriate):
- Invocation ID: 47437051-65f4-48e4-a6bf-dc57ce04edae
- Region: France Central

#### Repro steps
I'm not sure how to reproduce.

#### Expected behavior
- Delay of a few seconds / minutes
- Linear dequeue

#### Actual behavior
- Delay of a few hours
- Dequeue count 1, 2, 2, 3, 3, 3, 4, 4, etc for same function retry

Thanks