Magento releases regular updates to add more features and fix existing bugs in the existing versions. It is always important to upgrade Magento store to the latest version for improved store performance and functionalities.
However, sometimes, the upgrades may contain some minor bugs and errors. These bugs in the Magento updates can affect your overall store experience and, sometimes, can also hinder your sales.
One such error is the renderReCaptcha error during checkout in the Magento 2.4.3 version. After upgrading to the Magento 2.4.3 version, the console throws the following error during the checkout:
Uncaught TypeError: Unable to process binding “afterRender: function(){return renderReCaptcha() }”

The JS Knockout throws such error only when the reCaptcha is disabled from the backend. In this post, I have provided you a complete solution to fix such an error in your Magento store.
Method to Solve Uncaught TypeError: Unable to Process Binding renderReCaptcha in Magento 2.4.3
In order to solve the – Uncaught TypeError: Unable to process binding “afterRender: function(){return renderReCaptcha() }” in Magento 2.4.3, you need to follow the below-mentioned steps carefully.
Step 1: Open the Onepage.php file from ReCaptchaCheckout/Block/LayoutProcessor/Checkout.
Step 2: Replace the following line of code:
['payment']['children']['beforeMethods']['children']['place-order-recaptcha'])) {
with
['payment']['children']['beforeMethods']['children']['place-order-recaptcha-container']['children'] ['place-order-recaptcha'])) {
That’s it!
This is how you can solve the checkout JS knockout error of renderReCaptcha in Magento 2.4.3.
Also, do not forget to share this solution with your Magento friends through social media.
Thanks for reading.