Bug UnityEventTools.RemovePersistentListener dosen't save changes on an instance of a prefab.

Hi everyone!

I stumbled upon this issue when trying to remove a persistent listener that was added in a prefab, let's call this Enemy, and the event 'OnDeathEvent'.
It was set up like this:

In my scene, I had a bunch of instances of the Enemy prefab. Whenever I called:

UnityEventTools.RemovePErsistentListener(enemy.OnDeathEvent, 0);

​

it would remove the event as expected. Unfortunately, after starting the game the event would come back.

Is this a known issue? Do you guys have any workarounds?

 

Instances of prefabs don't exist except during playmode. There's nothing to save because the instance only exists when the game is running.

If you want to remove a listener from the prefab, remove it from the actual prefab, not an instance.

 

Then how are we able to change values in instances of a prefab? I thought changes in some values and changes is UnityEvents would be treated the same way.

 

Spawn the prefab, then make the changes.