Fatal error: Uncaught WC_Data_exception

[BusinessBloomer]

Prerequisites

• I have carried out troubleshooting steps and I believe I have found a bug.
• I have searched for similar bugs in both open and closed issues and cannot find a duplicate.

Describe the bug

Tried to create 10 orders via CLI and got this:

Fatal error: Uncaught WC_Data_Exception: <strong>First name</strong> is a required field. in /var/---------/wordpress/wp-content/plugins/woocommerce/includes/data-stores/class-wc-customer-data-store.php:116
Stack trace:
#0 /var/-----/wordpress/wp-content/plugins/woocommerce/includes/class-wc-data-store.php(186): WC_Customer_Data_Store->create()
#1 /var/-----/wordpress/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-data.php(241): WC_Data_Store->create()
#2 /var/-----/wordpress/wp-content/plugins/wc-smooth-generator/includes/Generator/Customer.php(115): WC_Data->save()
#3 /var/-----/wordpress/wp-content/plugins/wc-smooth-generator/includes/Generator/Order.php(179): WC\SmoothGenerator\Generator\Customer::generate()
#4 /var/-----/wordpress/wp-content/plugins/wc-smooth-generator/includes/Generator/Order.php(31): WC\SmoothGenerator\Generator\Order::get_customer()
#5 /var/-----/wordpress/wp-content/plugins/wc-smooth-generator/includes/Generator/Order.php(153): WC\SmoothGenerator\Generator\Order::generate()
#6 /var/------/wordpress/wp-content/plugins/wc-smooth-generator/includes/CLI.php(104): WC\SmoothGenerator\Generator\Order::batch()
#7 [internal function]: WC\SmoothGenerator\CLI::orders()
#8 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Dispatcher/CommandFactory.php(100): call_user_func()
#9 [internal function]: WP_CLI\Dispatcher\CommandFactory::WP_CLI\Dispatcher\{closure}()
#10 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Dispatcher/Subcommand.php(497): call_user_func()
#11 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(441): WP_CLI\Dispatcher\Subcommand->invoke()
#12 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(464): WP_CLI\Runner->run_command()
#13 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1296): WP_CLI\Runner->run_command_and_exit()
#14 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Bootstrap/LaunchRunner.php(28): WP_CLI\Runner->start()
#15 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/bootstrap.php(83): WP_CLI\Bootstrap\LaunchRunner->process()
#16 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/wp-cli.php(32): WP_CLI\bootstrap()
#17 phar:///usr/local/bin/wp/php/boot-phar.php(20): include('...')
#18 /usr/local/bin/wp(4): include('...')
#19 {main}
  thrown in /var/-----/wordpress/wp-content/plugins/woocommerce/includes/data-stores/class-wc-customer-data-store.php on line 116

WordPress Environment

No response

Isolating the problem

• I have deactivated other plugins and confirmed this bug occurs when only WooCommerce and WooCommerce Smooth Generator plugins are active.
• This bug happens with a default WordPress theme active, or Storefront.
• I can reproduce this bug consistently using the steps above.