Recently upgraded to the Magento 2.3.3 version?
But are you facing the PayPal issue in Magento 2.3.3 checkout or order placement?
The upgraded store works fine with adding products to the cart, checkout, and placing the order but fails to send the order confirmation Email!
You get an exception like:

Try the below solution to get rid of this Paypal problem while checkout and order placement:
Solution for PayPal Issue in Magento 2.3.3 Checkout
Find the below code in vendor/magento/module-checkout/view/frontend/web/js/action/select-payment-method.js
define([ '../model/quote' ], function (quote) { 'use strict'; return function (paymentMethod) { if (paymentMethod) { paymentMethod.__disableTmpl = { title: true }; } quote.paymentMethod(paymentMethod); }; });
and replace it with:
define([ '../model/quote' ], function (quote) { 'use strict'; return function (paymentMethod) { /*if (paymentMethod) { paymentMethod.__disableTmpl = { title: true }; }*/ quote.paymentMethod(paymentMethod); }; });
Compile the code.
That’s it.
If you are also facing the Magento PayPal issue with base currency INR you can also have a solution for that particular error.
Also Read: How to Manage Custom Amount with PayPal in Magento 2.
Please share the post with the store owners and admins of the Magento 2.3.3 stores via social media.
Thanks!