Do you have access to the RP4VMs 4.3 or 5.0 Whitepaper on Dell EMC Online Support as it includes a section relating to your question?  Regards,  Rich Forshaw RecoverPoint Corporate Systems Engineering
According to page 18, "Supported VMware Actions", in the RecoverPoint for Virtual Machines administrators guide, host and storage vmotion are both supported for vRPAs and protected virtual machines.   Protected virtual machines, to me, means the source virtual machine.  There is no mention in the documentation of replica virtual machines.  Is storage vmotion supported for replica virtual machines?
RP4VM 5.0.0.1 - Storage vMotion