Hello,
Windows Server 2012 and 2012 R2 machines will be discontinued on October 10, 2023, after which Microsoft will no longer provide security updates and technical support.
Reference link: Windows Server 2012 R2 - Microsoft Lifecycle | Microsoft Learn
Therefore, it is recommended that you upgrade your system or reproduce the issue with a newer version of the machine that is still covered by technical support so that you can continue troubleshooting.
Best regards,
Jingjing Wu