Replicated properties defined in an actor component blueprint are not being replicated because UActorComponent::GetLifetimeReplicatedProps isn't adding the blueprint properties to the OutLifetimeProps list.
1. Open attached project in 4.7
2. From the play menu, set number of players to 2
3. Play in editor
4. Press "enter"
5. Notice no debug text from the client appears. The BPs are set up such that a string should be printed when the value of a replicated variable in the actor component changes on the client.
There's no existing public thread on this issue, so head over to AnswerHub just mention UE-14857 in the post.