When in standalone, any widget that takes a click event doesn't respond properly to user input.



Tested in 4.19(CL - 403788), 4.20(CL - 4228271), and 4.21(CL - 4229747)

Steps to Reproduce
  1. Create a First Person Blueprint project
  2. Open the First Person Character Blueprint
  3. Add a Widget Interaction Component under the FirstPersonCamera Component
  4. Enable the Show Debug in the Widget Interaction Component
  5. Add a Get reference to the Widget Interaction Component
  6. Drag pin from get reference of component and select the Press Pointer Key and Release Pointer Key functions
  7. Set the Key for both functions to Left Mouse Button
  8. Within the Event Graph of the First Person Character Blueprint, disconnect the InputAction Fire execution located in the Spawn projectile comment box and drag execution pins to the Pointer Key functions
  9. Create a widget blueprint with a combobox  and add three options to the combobox
  10. Add the widget blueprint to the scene
  11. Play as standalone
  12. Attempt to click the combobox in the world space


Expected: The combobox should present the options provided.

Result: The combobox doesn't react to input.

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Won't Fix
ComponentUE - Editor - UI Systems
Affects Versions4.20.14.21
CreatedJul 25, 2018
ResolvedAug 18, 2021
UpdatedAug 18, 2021