What is the MOST likely cause of not creating tickets for critical vulnerabilities after upgrading a hosted vulnerability scanner?

The most likely reason for not creating tickets for critical vulnerabilities after upgrading a hosted vulnerability scanner is related to application compatibility issues. When a vulnerability scanner is upgraded, it is possible that the new version may not function properly with existing configurations, integrations, or the load distribution environment. These compatibility issues can prevent the scanner from properly identifying vulnerabilities or generating the necessary tickets based on its findings.

Rolling back to the previous working backup can often restore functionality and ensure that critical vulnerabilities are being correctly detected and reported again, as the previous version likely had a stable and compatible environment. This approach can be particularly useful if no immediate fixes or updates are available for the newly upgraded software, allowing the organization to maintain security monitoring while further troubleshooting or awaiting an official patch. In this context, focusing on compatibility ensures the scanner can continue operating effectively within its intended parameters.