My invoice does not show the values of the custom options of the prodicts ordered

Hello,

After creating order, custom options are displaying but after creating invoice of that order custom options are not showing. I have also checked sales_order_item table. In this table the value of product_options is changed after creating invoice. If i placed the old data after invoice then custom options are showing again. Please help me to solve this issue.

Thanks

Publish a screenshot.

Hello Dmitry,
Here are screenshots before and after invoice.
Also I have checked the sales_order_items table.

Before invoice
a:6:{s:15:“info_buyRequest”;a:6:{s:4:“uenc”;s:96:“aHR0cDovL2Rldi5mYWVyaWVzZGFuY2UuY29tL3Nob3J0LXNwb3J0LXNvY2tzLXJlcHJldmVyLmh0bWw_b3B0aW9ucz1jYXJ0”;s:7:“product”;s:4:“6638”;s:28:“selected_configurable_option”;s:4:“6636”;s:15:“related_product”;s:0:"";s:15:“super_attribute”;a:1:{i:131;s:2:“89”;}s:3:“qty”;s:1:“1”;}s:15:“attributes_info”;a:1:{i:0;a:2:{s:5:“label”;s:4:“Size”;s:5:“value”;s:6:“Medium”;}}s:11:“simple_name”;s:12:“48106-Medium”;s:10:“simple_sku”;s:12:“48106-Medium”;s:20:“product_calculations”;i:1;s:13:“shipment_type”;i:0;};

After invoice

s:535:“a:6:{s:15:“info_buyRequest”;a:6:{s:4:“uenc”;s:96:“aHR0cDovL2Rldi5mYWVyaWVzZGFuY2UuY29tL3Nob3J0LXNwb3J0LXNvY2tzLXJlcHJldmVyLmh0bWw_b3B0aW9ucz1jYXJ0”;s:7:“product”;s:4:“6638”;s:28:“selected_configurable_option”;s:4:“6636”;s:15:“related_product”;s:0:”";s:15:“super_attribute”;a:1:{i:131;s:2:“89”;}s:3:“qty”;s:1:“1”;}s:15:“attributes_info”;a:1:{i:0;a:2:{s:5:“label”;s:4:“Size”;s:5:“value”;s:6:“Medium”;}}s:11:“simple_name”;s:12:“48106-Medium”;s:10:“simple_sku”;s:12:“48106-Medium”;s:20:“product_calculations”;i:1;s:13:“shipment_type”;i:0;}";

So what is the problem with these screenshots?

After generating invoice product custom options are not showing there. See first screenshot Size: Medium is not showing in it