Customer Opening Balance are Negative

I am trying to enter starting balances of customers through batch process. When I enter the starting balances, it takes all balances to credit balance instead of debit balance.
The control account is pre defined under assets and there is no option to change account type i.e. debit or credit.

Screen Shot 2020-07-27 at 11.24.14 AM

Please adivse.
Thanks & regards

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