Vrrp transition scripts do not run in 1.2-rolling recent releases

I have two systems configured in VRRP, however the transition scripts do not run when the state changes from Master to Standby or back.
Config below:

set high-availability vrrp group wan_gateway advertise-interval '1'
set high-availability vrrp group wan_gateway authentication password 'pass'
set high-availability vrrp group wan_gateway authentication type 'ah'
set high-availability vrrp group wan_gateway health-check failure-count '3'
set high-availability vrrp group wan_gateway health-check interval '1'
set high-availability vrrp group wan_gateway health-check script '/config/scripts/vrrp/wan_gateway-check.sh'
set high-availability vrrp group wan_gateway hello-source-address 'fd00:f9a8:9a7e:3::234'
set high-availability vrrp group wan_gateway interface 'eth1'
set high-availability vrrp group wan_gateway preempt-delay '3'
set high-availability vrrp group wan_gateway priority '200'
set high-availability vrrp group wan_gateway transition-script backup '/config/scripts/vrrp/wan_gateway-fail.sh'
set high-availability vrrp group wan_gateway transition-script master '/config/scripts/vrrp/wan_gateway-master.sh'
set high-availability vrrp group wan_gateway virtual-address 'fe80::888/128'
set high-availability vrrp group wan_gateway vrid '1'

The check script seems to run per logs in messages, however when the state changes the scripted actions aren’t executed. When calling the scripts manually, the actions occur successfully which suggests to me that the lack of log activity when the state changes could be a bug.

Hello @ACiD_GRiM .
Can you provide version of the VyOS and show scripts?

run sh ver
Version:          VyOS 1.2-rolling-201911180217
Built by:         autobuild@vyos.net
Built on:         Mon 18 Nov 2019 02:17 UTC
Build UUID:       1b67d568-983a-4200-beb4-2732a4d7879b
Build Commit ID:  e7a834c040cbd9

Architecture:     x86_64
Boot via:         installed image
System type:      VMware guest

Hardware vendor:  VMware, Inc.
Hardware model:   VMware7,1
Hardware S/N:     VMware-42 2a 01 58 71 99 0b c5-a4 22 60 63 a3 48 d6 f4
Hardware UUID:    58012a42-9971-c50b-a422-6063a348d6f4

Copyright:        VyOS maintainers and contributors

admin@nvhqwangw02# cat /config/scripts/vrrp/wan_gateway-check.sh
#!/bin/bash
if /sbin/ethtool eth0 | grep -q "Link detected: yes"; then
/bin/ping -I eth0 -c 1 -W 1 1.1.1.1 > /dev/null
else
exit 0
fi
[edit]
admin@nvhqwangw02# cat /config/scripts/vrrp/w
wan_gateway-check.sh   wan_gateway-fail.sh    wan_gateway-master.sh
[edit]
admin@nvhqwangw02# cat /config/scripts/vrrp/wan_gateway-master.sh
#!/bin/vbash
source /opt/vyatta/etc/functions/script-template

configure
delete interface ethernet eth0 disable
delete interface wireguard wg0 disable
set protocols ospf default-information originate metric '10'
set protocols ospf default-information originate metric-type '2'
commit

exit
[edit]
admin@nvhqwangw02# cat /config/scripts/vrrp/wan_gateway-fail.sh
#!/bin/vbash
source /opt/vyatta/etc/functions/script-template

configure
set interface ethernet eth0 disable
set interface wireguard wg0 disable
delete protocols ospf default-information originate
commit

exit
[edit]