URGENT HELP needed - dhcp-relay does not work

all routers are ROS6.15,

on green segment dhcp clients obtain ip addresses from dhcp-server,
on black segment they do not.

all configured as in manual, if I add secondary ip addresses on dhcp-server incoming(from relay) interface it stops working even on green segment,

I have problem now with black segment,
Torch screenshot is from the router between relay an server, from interface facing relay


1.WHY IS relay thinking that it is dhcp-server? 172.22.29.4(this is relay’s ip to the dhcp-server,)
2. why is relay broadcasting instead of unicasting to 172.22.19.1(dhcp-server ip) ?
3. 10.10.0.4 is a dhcp-client host, and 10.8.0.1 is ordinar interface on intermediate router(not on dhcp-server)

Mikrotik, anyone ??
torch_on_middle_router_from_relay_interface.png
dhcp_relay.png

Mikrotik, waiting for your respond, emailed all the needed info and scenario to support@mikrotik.com