It looks like upstream issue
```
set interfaces ethernet eth0 vif 50 address '203.0.113.2/24'
set high-availability vrrp group GRP02 hello-source-address '203.0.113.2'
set high-availability vrrp group GRP02 interface 'eth0.50'
set high-availability vrrp group GRP02 no-preempt
set high-availability vrrp group GRP02 peer-address '203.0.113.1'
set high-availability vrrp group GRP02 rfc3768-compatibility
set high-availability vrrp group GRP02 virtual-address '203.0.113.254/24'
set high-availability vrrp group GRP02 vrid '10'
set high-availability vrrp group GRP02 address 203.0.113.254/32
```
Show interfaces:
```
vyos@r4-epa1:~$ show int
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface IP Address S/L Description
--------- ---------- --- -----------
eth0 192.168.122.14/24 u/u Wan
eth0.50 203.0.113.2/24 u/u
203.0.113.254/24
```
Expected interface **eth0.50v10**
In logs:
```
Oct 19 15:11:37 r1-roll Keepalived_vrrp[11520]: (/run/keepalived/keepalived.conf: Line 29) (GRP02): Cannot use VMAC/ipvlan with unicast peers - clearing use_vmac
```
It seems some upstream “keepalived” issue
It doesn’t work even in 1.3.0-rc6
Also affected 1.3.0-epa2
Possible it was fixed here https://github.com/acassen/keepalived/commit/97429b3b7e6ec2f5b9c93a5d507b152bab30f919
in keepalived 2.2.x