Cash Management Bank Transfer approval is failing

Summary:

The Cash Management bank transfer approval workflow fails when the if condition uses the bank account field FinCeBatTransferApproval.fromBankAcctNum. However, it works when I use the bankAccName condition. I also removed the mask validation and tested again, but the workflow still failed. At the moment, it only works with Bank Name and Bank Account ID. Do you know why this behaves this way, and is there any workaround to proceed using the bank account ?

Content (please ensure you mask any confidential information):

The Cash Management bank transfer approval workflow fails when the if condition uses the bank account field