Unreal Engine Issues

UE-63320

PIE gets stuck on infinite loop when Background Streaming is disabled

PIE gets stuck on infinite loop when Background Streaming is disabled

UDN
Description

When "Use Background Level Streaming" is disabled, the Editor gets stuck loading in PIE when you press Play. This is a regression from 4.19.2 (CL-4033788).

This issue was reported and tested in 4.20.2 (CL-4302132). This was reproduced in Main 4.21 (CL-4313833)

Steps to Reproduce
  1. Download and open the attached project
  2. Click on Edit and go to Project Settings
  3. Search for "Use Background Level Streaming" and disable it if it is enabled
  4. Play in Editor

Result: The Editor gets stuck trying to load PIE

Expected: PIE loads up and you can move around

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Fixed
ComponentUE - Foundation - Core
Affects Versions4.20.2, 4.21
Target Fix4.21
Fix Commit4404901
Main Commit4450599
Release Commit4404901
CreatedAug 24, 2018
ResolvedSep 28, 2018
UpdatedNov 7, 2018
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