This is a known issue impacting NSX-T Data Center.
In a future release on VMware NSX, as part of the automatic remediation process, the rescanning of interfaces will be implicitly triggered twice by the system.
Workaround:
To recover the missing IPv4/IPv6 addresses, the interfaces can be rescanned using the below command in the edge node CLI as admin user:
Edge> get logical-routers
Edge> vrf <vrf_id of SERVICE_ROUTER_TIER0>
Edge(tier0_sr)> set debug
Edge(tier0_sr)> start rescan interfaces
Edge(tier0_sr)> exit
NOTE: For VMware NSX versions prior to 4.1.2, please do not use the workaround on EVPN enabled setups.