Cannot control Widget of other Local Player in Standalone?

Development Programming & Scripting
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1

Currently I am creating multiple local players and displaying split screen mode, each local player will have a UI added to the player screen. The problem is that I can use the mouse to click the button in all the player UI when playing in the editor but in standalone mode or packaged build, I only can click button of only the first player, the rest are unclickable. What should I do to fix this problem?

2

Any help please?

3

I have tried several ways to test like:

  1. All UI add to viewport: All clickable but cannot splits screen anymore
  2. All UI set owner to PlayerController 0: Same result as 1.
  3. All UI set owner to PlayerController 0 but using AddWidgetForPlayer from UGameViewportSubsystem to add to another player screen: Only can interact with the first player UI.
  4. Create new PlayerContext with PlayerController 0 and set it to UI: same result as 3.

So I guess there’s something preventing only the viewport of which player will receive that player’s input right?

4

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