Actors attached to a Child Actor Component do not replicate movement on the Client.
User's test project attached.
Reproduced in 4.9.2 binary and Main (CL 2735029)
1. Open the attached project
2. PIE with 2 players
3. On the Server, press Space to spawn and attach an actor to the child actor component
4. Press the arrow keys to move the child actor component
On the Client, the attached actor snaps to a different position and does not replicate its new positions to the Client.
Head over to the existing AnswerHub thread and let us know what's up.