Health Monitors for Non-default Route Domains

I currently have a non-default route domain (rd 1) set up for a group of hosts. Both route domain 0 and route domain 1 have strict isolation enabled. However, health monitors set up for hosts in route domain 1 are still being sourced from the non-floating IP in route domain 0. They are not able to reach the hosts and therefore the hosts are marked as down. If I go to the CLI and try to telnet to a host in route domain 1, such as hostA:443, it fails to connect. However, if I go to route domain 1 with 'rdsh 1' I am then able to connect to the host. Is there a way to make a health monitor use the non-floating IP in the route domain the host is in or do I need to make a route between the two? ...or something else? Thanks.