Zend certified PHP/Magento developer

Unable to Set Custom Price or Quantity in Admin Orders

I have a Magento 2.4.3-p2 instance running on apache2. When I create an order using the admin backend, I cannot customize the prices and quantities of the products I have added to the order. The update items and quantities button send the ajax request and when it updates the page all of the products’ quantities and prices return to their original state.

I looked into both the Magento logs and apache but I have not seen any error being logged. I have also checked in the Magento patches tool for any related bug and have not found my issue there. What can I do else to debug this issue?