This service pack updates Designer to support Azul Zulu OpenJRE 1.8.0_312 (64-bit).
On the server where you installed Designer, download and install the Azul Zulu OpenJRE 1.8.0_312 (zulu8.58.0.13-ca-jre) files in a local directory.
Open the Designer.ini file located in the Designer installation directory.
Update the JRE path in the Designer.ini file.