When running a standalone build, focus navigation doesn't work on widgets within a world-space widget component. This may be fallout from UE-62606, which parented the widget component's virtual window to the game viewport. It appears the bounding rectangle used by FindNextFocusableWidget is affected by the window's space on the desktop instead of being relative to the widget component.

Steps to Reproduce
  1. Create a world-space widget component with a few buttons
  2. In your level blueprint, bind a keyboard key to set focus to one of the buttons
  3. Launch PIE. Note that you can hit spacebar to press the button, and use the arrow keys to navigate between them.
  4. Launch Standalone. Navigation no longer works, only the first button can be pressed

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ComponentTools - UMG
Affects Versions4.224.23
Target Fix4.24
Fix Commit7476168
Main Commit7476168
Release Commit9552237
CreatedJun 14, 2019
ResolvedJul 22, 2019
UpdatedFeb 12, 2020