Cash Clearing accounting line hitting Cash Account of the bank account setup

Summary:

When accounting payment, why is my Cash Clearing hitting my Cash Account at the bank account setup?

Content (please ensure you mask any confidential information):

I have one bank account with no cash clearing account.

Our setup for Account for Payment is set to "At payment issue and clearing"

I processed a payment using this bank account.

I accounted the payment prior to clearing.

My Cash Clearing hit the Cash Account.

We don't have SLA in placed.

Business Unit Access of the bank account doesn't have cash clearing account either.

Why does my cash clearing hit the cash account when I don't have the Cash Clearing account at the bank account setup?