For known issues concerning Replication Server, Replication Agent, and ECDA, see these documents:
Replication Server 15.2 Release Bulletin for your platform
Replication Agent 15.2 Release Bulletin
Enterprise Connect Data Access 15.0 Release Bulletin for your platform
The known issues for the Replication Server Heterogeneous Edition that are listed in these sections are in addition to those described in the individual product release bulletins.