Paypal CheckOut button label Renders Nothing

[Alexmultimedia]

Hi, im preparagon a CHECK OUT System from Paypal in my website. All is fine now, i did live test: working.

But i have a silly problem that really looks like a BUG of Paypal. As soon as is not the default language (English) the CheckOut Sibmit Button Label renders nothing as showen in the image. Is a Paypal Server problem, it should render Pay Now in Spanish as Locale is set ES: but renders nothing as you can see in the image: in the HTML, in the label <button> there simply nothing.

Any solutions? Is payPal having a bug?

Thanks!