A packaged game that includes a code class that references a widget Blueprint will display an error on launch stating that the widget blueprint cannot be found.

If a widget Blueprint is referenced in code, an error is displayed when the packaged game is launched stating that the widget could not be found (in 4.11 the widget still appears to be successfully found even after the error message is shown).

In the attached project, a code actor class locates a widget Blueprint by reference, then outputs a message to the screen if successful. The package settings for the project are set to perform a full build when packaging.

1. Download the attached DemoWidgetPkg.zip project.
2. Unzip the project.
3. Associate the project with your main build (it was made using CL 2704243).
4. Build the project in Visual Studio.
5. Open the project in the Editor.
6. Start PIE.
7. Note the message displayed in the top left corner of the screen.
8. Package the project for Win64.
9. Launch the packaged game.

RESULT:
An error message is shown indicating that the W_UnitWidget widget could not be found (see the attached Error.png).

EXPECTED:
The game launches without any errors.

Fix UE-51650

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