When the user.login.log_out_other policy is used, such as the one below, it might not logout the session of another user when the TCP Tunnel Proxy is used.
Note : The TCP Tunnel Proxy is used when, for example, HTTP CONNECT is used and Protocol Detection is disabled on the HTTP Proxy.
This is working as designed. To workaround this, enable Protocol Detection for the HTTP Proxy so that traffic will be handed off to the respective proxy instead of TCP Tunnel Proxy.
An example is given in 000008719