@jffaria Brazil should have been disabled previously, as it is still in “Beta” only access for Stripe. However, an oversight on our part allowed use in that country until now.
Normally we only add countries to the supported list once Stripe has publicly launched them (this does not include closed beta programs).
Our team is currently discussing how we want to handle this movie forward, however as you mentioned you can manually add support back.
Can you share some more details on what Webhook problems you are having? When you look at your Stripe logs (WooCommerce > Status > Logs) as well as the Webhook history in your Stripe account, do you see any errors?