GameInstance::Init is not triggered in packaged game. but works in editor

Development Programming & Scripting
1

the engine version is is prebuild 4.17.2.

GameInstance::Init called in editor mode, everything is prefect.
but this function is not called in packaged client.

2

sorry for that i forgot to explain the GameInstance class is write in to a plugin.
i just create a new project, then create a plugin for this project from editor plugin window.
i found the reason from this post How to package game with My Engine Plugin? - Platform & Builds - Unreal Engine Forums

**the problem is the plugin must mark as runtime plugin. **
edit the .plugin file. Modules > Type = RunTime.


{
	"FileVersion": 3,
	"Version": 1,
    ...
	"Installed": false,
	"Modules": [
    {
      "Name": "XXXXPlugin",
      "Type": "RunTime",
      "LoadingPhase": "Default"
    }
	]
}