Windows pptp client IPv6 address assigning

Trying to get working windows client to ROS server.

Made a pool

/ipv6 pool
add name=he-48 prefix=2001:570:73b6:10::/60 prefix-length=64

Assigning pool to ppp profile:

/ppp profile
set remote-ipv6-prefix-pool=he-48 ppp-in

Windows don’t get address, only link-local.

If I set remote-ipv6-prefix directly to ppp secret - it gets assigned.
But I want to use pool!