Use Single Process settings adjusted while Use Single Process is disable are retained while Use Single Process is enabled. This can be problematic when there are issues with having Use Single Process disabled, such as that found in [Link Removed]

Reproduced in 4.7.6, 4.8.1, and Main (//depot/UE4/Promotable-CL-2605171)

Steps to Reproduce

1. Open any project
2. Disable Use Single Process in Editor Preferences > Play
3. Switch Editor Multiplayer Mode to Play As Listen Server
4. PIE in Standalone with 2 players
5. Re-enable Use Single Process
6. PIE in Standalone with 2 players

Two Standalone windows are opened

One Standalone window is opened

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Won't Fix
Affects Versions4.
CreatedJul 1, 2015
ResolvedMay 30, 2017
UpdatedSep 18, 2019