Below is a screenshot of stale NSX-T logical switch:
From the localhost access logs we observe DELETE api triggered to the NSX-T manager:
nsx_manager/var/log/proton/localhost_access_log.txt.7:2026-02-04T03:50:34.729Z - "DELETE /nsxapi/api/v1/infra/segments/vnet_########-####-####-####-############_0 HTTP/1.1" 200 - 927 927 +
From wcpsvc logs:
From configure-wcp.log on master-vm:
VMware NSX
vSphere Supervisor
If the TKG clusters were created after the supervisor backup was taken. When the Supervisor restore was performed, the etcd database was rolled back to the state captured in that backup - a point in time before these clusters existed. As a result, their Kubernetes CRs (VirtualMachines, VirtualNetworkInterfaces, etc.) were absent from the restored Supervisor state, causing the removal of the nsx segments from NSX-T and remained on vCenter Server.
Please contact Broadcom support for assistance in Cleaning Up Orphaned Objects After Supervisor Restore from a Backup