User Sessions not expiring at the end of Userman Profile/Limits !

We have configured the Hotspot / Userman

We are able to login as a user we have created and assigned a 5minute profile to it.

Name - 5m
Name for Users - 5m
Validity - 5m
Starts - at first login

Added a limitation -

Uptime -5m

After 5 minutes of being connected the account does not expire and we are able to continue using it.

I have googled this and searched the Mikrotik forums with no joy.

Only thing i have seen that could help is COA

We have tried enabling COA support in the router details section and tried a 5m user again and this still did not work.

This is now unticked again.

Any help would be greatly appreciated.