QFX5120 Leaf is forwarding the packet in the wrong direction

Customer is seeing intermittent connectivity in his IP Fabric running EVPN VXLAN:

Service is intermittent. While doing traceroute from Outside Source: 10.67.50.6 -> Destination: 10.52.232.22 

SRC: 10.67.50.6 < --- > Router < --- > BorderLeaf1/2/3/4 < --- > Spine 1/2/3 < --- > Leaf5/6 < --- > Server DST IP: 10.52.232.22/ MAC address: 40:a6:b7:d0:76:b9

Check the Control-Plane table from Leaf 5 connecting to the Server has learned ARP and binding the correct MAC/IP.  

However on Leaf5, the HW entry for the egress next-hop shows incorrect mac address which is of Server (10.52.232.20) reachable via VTEP i.e. connected to a different Leaf switch pair.

However, Leaf6 has correct HW programming and traceroute works fine if its hashed to this switch. As a workaround customer recovered the problem by disabling and enabling the LAG port on Leaf5 switch where the actual server is connected. It helped to restore the correct HW programming.

This issue is tracked via:

https://prsearch.juniper.net/problemreport/PR1859778

Hence suggestion is to upgrade to a fixed Junos version of this above PR.