When working with the PayPal SDK v5, I'm getting this error "Uncaught Error: credit is not eligible" unless the sdk is loaded with vault=true. Why is vault=true required to display the credit button? Does it change any functionality if I load it with vault=true but don't want to vault the payment? paypal.Buttons({
style: {
color: 'darkblue',
shape: 'rect',
size: 'medium'
},
fundingSource: paypal.FUNDING.CREDIT,
....
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