`NetworkObject` `CheckObjectVisibility` doesn't work on client connection

Description

I want to spawn a networkprefab without any client visibility, first i tried to set no observers before spawn:

NetworkObject.SpawnWithObservers = false;
NetworkObject.Spawn();

this results a spawned object with zero observers, but when a late-join client connects, the object gets spawned on client. The documentation says this is the intended normal behavior, because it only works at the initial spawning.

Then, the documentation says the CheckObjectVisibility will work at both initial spawning and new client connection, so i tried this:

NetworkObject.CheckObjectVisibility += _ => false;
NetworkObject.Spawn();

it did spawn with no observers as the previous approach, but when late-join client connects, it still spawn the object on client.

Reproduce Steps

1. start server/host
2. spawn a network prefab with NetworkObject.CheckObjectVisibility += _ => false;
3. start a client and connect to server

Actual Outcome

a spawned object with visibility always set to false still spawns on late-join client

Expected Outcome

a spawned object with visibility always set to false should be invisible to all connected client and future late-join clients

Environment

• OS: [win10]
• Unity Version: [6000.0.32f1]
• Netcode Version: [2.1.1]

Beginne mit dem Verhalten von NetworkObject bei SpawnWithObservers, Spawn und CheckObjectVisibility und vergleiche dabei die im Bericht verlinkte Dokumentation zum Spawning und zur Objektsichtbarkeit. Reproduziere die Late-Join-Sequenz mit CheckObjectVisibility, das false zurückgibt, und bestätige, dass das Objekt auf dem Client abwesend bleibt; die Arbeit ist abgeschlossen, wenn die Sichtbarkeit auch für zukünftige Late-Join-Clients durchgesetzt wird.