I think there is issue at RouterOS v6rc11
in hotspot active display like my picture, value Tx always zero but in queue tree look normal.
*) usermanager - I saw Calling Station ID in user session*) webfig - fixed uptime column in hotspot active users list (and other places as well) ;
Sorry I'm forget somethingbtw:
The Radius Server can not update with NTP client system time
Here is the log :