NetworkVariable<List<GameObject>> declaration causes network crash.

I'm working on an online card game and I'm having trouble figuring out why the network keeps crashing when I declare these two variables.

Here is the relevant code in the class that causes the error:

Code (CSharp):

1. public class Hand_Manager : NetworkBehaviour
2. {
3.   //The host's hand on the network
4.     public NetworkVariable<List<GameObject>> Player1Hand = new NetworkVariable<List<GameObject>>(new NetworkVariableSettings
5.     {
6.         WritePermission = NetworkVariablePermission.ServerOnly,
7.         ReadPermission = NetworkVariablePermission.Everyone
8.     });
9.    
10.     //The client's hand on the network.
11.     public NetworkVariable<List<GameObject>> Player2Hand = new NetworkVariable<List<GameObject>>(new NetworkVariableSettings
12.     {
13.         WritePermission = NetworkVariablePermission.ServerOnly,
14.         ReadPermission = NetworkVariablePermission.Everyone
15.     });
16. }

All game objects that work with the HandManager have a NetworkObject component attached.

I still get this error messages like this for some reason:
[MLAPI] NETWORK_VARIABLE_DELTA message received for a non-existent object with networkObjectId: 5. This delta will be buffered and might be recovered.

Can someone tell me what I am missing here?

 

You haven't really read the documentation, right?

 

Oh that's embarrassing, thank you for pointing that out for me.

 

how complex is too complex and what was your solution?