Our ESXi hosts in a cluster are ALL having a datastore with the same name on ALL hosts.
Example below:
hostname;datastores
host1;datastore-asdf,ds-common
host2:datastore-sdfg,ds-common
host3:datastore-dsfg;ds-common

Now, the ds-common's monitoring is only working on a single host from the whole cluster. It doesn't show up on the other hosts' "Latest Data", but the items are showing up in configuration, and the graphs are also generated with it, containing [no data]