Recover point for VM Cluster status issue

Hello

I'm trying to create a POC for RP4VM.

They each deployed two vcenters.

RPA_A was deploy0 as UCS, and RPA_B deployed RP4VM as Vxrail.

RPA_A and RPA_B were configured, and in RPA_A, RPA_B is checked in Remote vRPA Clusters, but RPA_B cannot check the status. Can I know the reason?