Can't make 169.254.169.* network to route

Hi,
I stuck on a problem and I’m not sure if it’s me or netbird routing implementation.
I’m setting network route using Networks features. Let say target network is 192.168.101.0/24.
All is ok, routing works I see route inserted into netbird table on Linux peer. ip route get shows correct gateway.
I’m changeing target network 192.168.101.0/24 → 169.254.169.0/24 and it stops to work.
I’m switching back to 192.168.* - it works.
What is wrong with 169.254.169.0/24 network.

This is some legacy system I was introduced and currently I can’t change that pool.
Is this is bug or “by design” ?