idle timeout in VPN Features not working?

Under the “/interface vpn-server server” menu, the “idle-timeout” value doesn’t appear to have any effect in RouterOS 6.43.8.
con’t find idle - timeout in the general active connections user
In a certain period of time (10 minutes) or more, you cannot reconnect to the VPN server, or have too many connections.

Flags: R - radius

NAME SERVICE CALLER-ID ADDRESS UPTIME ENCODING

0 home1106 pptp 10.0.0.5 10.0.0.253 8m38s MPPE128 sta…
1 home1106 pptp 10.0.0.5 10.0.0.253 6m23s MPPE128 sta…
2 home1106 pptp 10.0.0.5 10.0.0.253 5m54s MPPE128 sta…
3 home1106 pptp 10.0.0.5 10.0.0.253 5m33s MPPE128 sta…
[admin@MikroTik] /ppp active>