Environment
Reflection for the Web (All Editions) version 12.3.1 and earlier
Situation
If you are running Reflection for the Web 12.3.1 (12.3.1.595) or earlier (released 2018 or earlier), you may encounter an issue where host sessions fail to launch. The following message is logged to the Java Console: "PKIX path validation failed: java.security.cert.CertPathValidatorException: timestamp check failed."
Resolution
To resolve this issue, upgrade to Reflection for the Web 12.3.1 Update 2 (12.3.1.601) or later, which is available on our download site to any customer currently on maintenance.
Cause
A code signing certificate has an expiration of 08-Jun-2021.