SAP Logs details changed by auto and remove the data , SAP Business One HANA

Dear all,

Recently, We have faced issue and check in log details access. SAP logs seen into black color and New value is showing blank. GRPO is created using base document purchase order.

Issue in Document / Log details snap : GRPO document

Note: Base ref Number field is not a UDF. It's SAP base field name.

SAP Business One HANA

Regards,

Nikunj Mehta