At present navigation streaming via Weston remote display does not work in the full demo setup with the agl-cluster-demo-platform image on another board and an image with the agl-cluster-demo-support + agl-demo-preload running on the IVI.  This is in part due to the application framework removal rework not extending beyond getting tbtnavi to compile, but additionally there are some other recipes / configuration that were dropped or have changed that need some fixes.