RADIUS - Framed-Pool

Hello,
In my network I use Freeradius. My goal is for each client assign current DHCP-Pool. This I do via Radius Attribute ‘Framed-Pool’.
Reply Attribute:
Framed-Pool dhcp_wifi-guests =

In Mikrotik log I see, that such attribute has been passed:

....
13:31:45 radius,debug,packet     Signature = 0xbcd19513e1f18837dee48b5596285e1c 
13:31:45 radius,debug,packet     Framed-Pool = "dhcp_wifi-guests" 
13:31:45 radius,debug,packet     User-Name = "test" 
....

But anyway the client dosn’t get IP from this pool. get IP from another/default pool.
I am not able find where is the problem,
ROS: v6.42.6

Thank You for any hint

Make sure that you have “dhcp_wifi-guests” address pool on your Mikrotik router.