With the latest version of everything, and HPOS enables, I get this error when I try to create a new Purchase Order:
Fatal error: Uncaught Error: Call to a member function get_meta() on null in /home/customer/www/public_html/wp-content/plugins/custom-payment-gateways-woocommerce/includes/class-alg-wc-custom-payment-gateways-input-fields.php:202 Stack trace: #0 /home/customer/www/public_html/wp-includes/class-wp-hook.php(312): Alg_WC_Custom_Payment_Gateways_Input_Fields->add_input_fields_meta_box('atum_purchase_o...') #1 /home/customer/www/public_html/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #2 /home/customer/www/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/customer/www/public_html/wp-admin/includes/meta-boxes.php(1715): do_action('add_meta_boxes', 'atum_purchase_o...', Object(WP_Post)) #4 /home/customer/www/public_html/wp-admin/edit-form-advanced.php(271): register_and_do_post_meta_boxes(Object(WP_Post)) #5 /home/customer/www/public_html/wp-admin/post-new.php(75): require('/home/customer/...') in /home/customer/www/public_html/wp-content/plugins/custom-payment-gateways-woocommerce/includes/class-alg-wc-custom-payment-gateways-input-fields.php on line 202
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