'Sign out' Button Not Working

[Junto026]

I have 2 separate Authentik installs used for separate environments. Both are running 2024.10.1.

In one installation, the 'Sign out' button works normally.

In the second installation, the 'Sign out' button on the user dashboard does not work. It triggers the invalidation flow, the spinning wheel displays while it processes, but then the user is returned to the dashboard and remains signed-in. However, if I go to the Flows page, and find the 'flow-default-invalidation' flow, and click 'Execute', it works and the user is signed out.

Any ideas what could cause the 'Sign out' button on the user dashboard to behave differently than when clicking 'Execute' for 'flow-default-invalidation'? I've compared configurations between the 'working' and 'not working' environments and can't figure out what could be the cause.