Approve Button is available with the approver even after approving the transaction

Summary:

Let's assume below is the setup of a particular approval rule in Oracle: Approver 1 ->  Approver 2 -> Approver 3 -> Approver 4
Approver 1 is the manager of Approver 2
The issue we are having with this workflow is that once Approver 1 clicks on "Approve" for the transaction, the Approve button is not removed and they still have the ability to click approve again. If Approver 1 opens the notification again, and clicks approve a second time, this does not give any error or warning and is basically bypassing the approval to Approver 2 and transaction directly goes to Approver 3.

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