Cooked game has no main menu, works in editor perfectly

I met an unusual problem. If I start my game in editor, the Main Menu comes up as it supposed to and I can start a game perfectly. But if I cook the game, the Main Menu comes up “empty”, no buttons. I’m using BP only, and I did not tamper with the Main Menu Map or Widget since the last working version. (I did not touch those at all, I use the one in the Multiplayer Shootout game.) In World Settings Game Mode seems to be correct.
In World Settings GameMode is set to MyGameMode, in Project Settings Game Default Map is Main Menu. I’m using Blueprints only.
Is there any idea what could cause this, what other settings should I check? Any help is appreciated.

Hello Airner,

I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Quick questions:

  1. Can you reproduce this issue in a clean project?
  2. If so, could you provide a detailed list of steps to reproduce this issue on our end?
  3. Could you provide screen shots of any blueprints/widgets that may be involved with this issue?
  1. I have no idea how to do that, I have very limited understanding of UE4 as I am a game designer not a programmer.
    3 . I am using (modding) the Multiplayer Shootout game sample project, and I did not made any changes of the setup of the game to the point where it loads the game level (Level1).

Hello Airner,

After doing some digging it appears that a similar issue has already been reported. I have provided a link to the issue below. I feel that this shares the same root cause. Some of the issues in Multiplayer Shootout are caused by an out dated setup. The blueprints were designed before a few big changes were made to UMG. This tends to lead to the same sort of issues that you are currently experiencing.

Link: Unreal Engine Issues and Bug Tracker (UE-16980)

Make it a great day