Player Objects Not spawn on clients connected

Hi, I'm creating a networked game for a school project using the new UNET component however I encountered an anomaly such that the player object for clients connected( not Host) are not being spawned but the objects in the scene plus the player object of the Host are spawned as in the picture below.

View attachment 176251

For more information, I am using a custom networkmanager that I derive from the base NetworkManager and I overrode the OnClientConnect and OnServerAddPlayer...

Player Objects Not spawn on clients connected