Hi, if you run "onstat -g dri", you must see State On, if not, the HDR is not sync.
Check the online.log of the primary engine, to find messages like
10:33:21 DR: Sending log xxxxx, size yyyyyy pages, zzz.xx percent used
If so, then both servers are in sync proccess, if not, you must rebuild the replica. I hope this help you.