Unable to view the File attached in Approval notification in the Sales order after approval

Summary:

After the Order is submitted it goes for approval.

The Approver checks the notification and before approving he enter some approval note in the comment and Attaches a file in it and Approves.

After approval when checked in the sales order only we can view the Approval note and not finding the Attachment file.

Where it has to be checked in the Sales order

Content (please ensure you mask any confidential information):

After the Order is submitted it goes for approval.

The Approver checks the notification and before approving he enter some approval note in the comment and Attaches a file in it and Approves.