Remote_homeassistant configuration issue after recent updates and removal of DuckDNS

For almost a year I have had 2 instances of HA in my home linked with the remote_homeassistant integration. Until recently it was only required to be installed on the remote instance but after the most recent update it needs to be on the remote and main instance. When running the configuration on the remote instance it pulls up my old DuckDNS address that I no longer use and I can’t go any further. If I put in the correct local address it just fails and reverts back to the DuckDNS address.