&quot;We have discovered an error in Magento 2.3.4 that can prevent a shopper from completing an order when using PayPal Express Checkout. The issue occurs for any country where the region field in the address section is a text field (as opposed to a drop-down menu).
We have released a hotfix to resolve this issue and recommend that merchants on Magento version 2.3.4 who are also using PayPal Express Checkout download and apply this hotfix as soon as possible to prevent further errors. Please refer to our help center for instructions and troubleshooting. A fix for this issue will be included in Magento 2.3.5.