Unable to ping Inter IRB traffic in EVPN-VXLAN fabric and causing servers to lose connectivity.

On Junos OS Evolved QFX5130 platforms, When VGA mac and Remote IRB mac moves to access 
interface there are network reachability issues in the EVPN scenario. This leads to sync 
issue between hardware and software i.e. hardware is pointing towards access interface,
but l2alm is still pointing to VGA mac and Remote IRB mac. 
This issue results in traffic drops when the clients are unable to reach the VGA IP.

Sample Configuration:
set routing-instances <instance> instance-type mac-vrf
set routing-instances <instance> protocols evpn encapsulation vxlan
set routing-instances <instance> irb unit <unit> virtual-gateway-accept-data
set routing-instances <instance> irb unit <unit> family inet address <x.x.x.x/x> preferred
set routing-instances <instance> irb unit <unit> family inet address <x.x.x.x/x> virtual-gateway-address <x.x.x.x>
set routing-instances <instance> irb unit <unit> virtual-gateway-v4-mac <xx:xx:xx:xx:xx:xx>

The issue happens due to VGA MAC and Remote IRB MAC moving to the access interface leading 
to a sync issue between hardware and software i.e. hardware is pointing towards the access
interface, but l2alm (Layer 2 Address Learning Manager) is still pointing to VGA MAC and 
Remote IRB MAC resultingin network reachability issues.

This issue is fixed in PR 1805685.

https://prsearch.juniper.net/problemreport/PR1805685

Fix is available in release - 23.4R2.