I have opened a dashboard using the standalone.jsp page for the Dashboard portlet - e.g. http://<IP or FQDN>/dashboard/jsp/standalone.jsp?path=example_dashboard
When I click "Log Out", instead of being logged out you are just sent back to the "Open Dashboard" menu and prompted to pick a new dashboard:
DX UIM/Operator Console 23.4.2
defect
This will be resolved in DX UIM 23.4.3 (End of 2024/Early 2025)