Boleto payment method not working in Sandbox?

Hello! I tried out today the Sandbox feature, indeed it is a great feature. It would be very useful to us as with the current test environment we cannot change and test Company settings for example.

Unfortunately upon trying to create a subscription with Boleto payment method It throws an error and says in the Dashboard that is not accepted. even tho on the Settings page it can be activated and set up.

So I wanted to know if this is indeed a limitation for this feature yet or should I make any more changes so it becomes available? Already activated it in Settings → Payments

Thanks!