Logout redirect session idle not working

Hi, I am trying to have my spring boot app kick me out and back to the login screen after a certain time period. Seems pretty simple, but no luck. I filled in all the urls in the client and I set SSO idle, SSO max, Access token lifespan (both). That’s another question, which of these actually need to be set? I’m setting it to 1 minute for testing purposes. I see so many people in google with this issue. Please HELP! Why is this so difficult?!