Certificate error for screenshot tool - fix available for 6.0.3?

I do not think for 6.0.3 you need replace the server jar.

Try clearing the machine's java cache.

Clear cached applications from the Java Control Panel, execute: Windows: <Java_install_directory>/jre/bin/javacpl.exe Linux: <Java_install_directory>/jre/bin/ControlPanel Click "View..." in Temporary Internet Files section -> Select the Capture application -> Delete (Red "X" or press Delete key).

The certificate used to sign the 6.0.3 screen capture tool is valid between 2016-10-17 and 2019-11-17. In other words, the certificate has not expired yet, so there is no need for a "fix". That's the reason the technote does not mention 6.0.3.