Missing Topology Type Error

I'm running the latest version of FMS and VMWare cartridge and notice this error appearing frequently.

java.lang.IllegalStateException: Error processing incoming data for node path: [FglAM::VMware-Performance-Agent-5_6_3/VMwarePerformance-5_6_3/topology-adapter.xml]/VMW:VMW/VMWStorage:VMWStorage/VMWVirtualCenter:VMWVirtualCenter/VMWESXServers:VMWESXServers/VMWESXServer:VMWESXServer/Disks:Disks/ISCSI: com.quest.nitro.service.topology.TopologyTypeNotFoundException: SanHostPortISCSI

Anybody else experiencing this error?

Doug