Hi,
Can you please try and see if below change helps once:
- Take a backup of file web.xml at path
<controller_install_dir>/appserver/glassfish/domains/domain1/applications/controller/controller-web_war/WEB-INF/ to change default session timeout
snippet:
<session-config>
<session-timeout>20</session-timeout>
</session-config>
- now restart UI java process of controller UI
for mroe details https://docs.oracle.com/cd/E18930_01/html/821-2431/abedw.html