[new update] Windowed to Windowed Fullscreen doesnt work anymore, cant move FN between monitors now

General Issues and Bug Reporting
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1

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Stability

Summary

As seen on video, applying Windowed fullscreen doesnt work and switches back to windowed. This prevents us from moving the game window between monitors and is annoying for development. This happened with the new update today

Steps to Reproduce

Open FN
Go to settings and switch to Windowed Fullscreen
Apply and Keep changes
Exit and re-enter settings

Expected Result

Windowed Fullscreen is applied

Observed Result

Windowed is applied instead (didnt save settings)

Platform(s)

PC

2

Investigating

3

that Windowed Fullscreen revert is Fortnite-side — WindowedFullscreen should just be borderless at display res so you can drag between monitors. if it snaps back to Windowed, the settings apply is failing validation (common when display metrics change triggers a revert). checking GetCurrentWindowMonitorIndex before/after Apply helps see if UE thinks you changed display. for your own packaged builds with similar move-between-monitors needs, MoveGameWindowToMonitor handles the placement without relying on that Fortnite toggle — Multi-Monitor Display Controller | Fab has the BP side.