Unreal Engine Issues
Unreal Engine Issues
UnrealFrontend doesn't package client and adds both -noclient & -client argument when both server and client is selected to be packaged in same profile
UE - Platform - Apr 15, 2022Repro Ratio: 4/4 Regression tested in //UE5/Release-4.27.2 CL-18416816 and this issue DID NOT happen. When looking at the log output of the Project Launcher, the command that is ran is:-ScriptsFor ...
Sprite sheets cannot be reimported in 4.8 in a project that was converted from an older version
UE - Gameplay - Paper2D - Jun 11, 2015User bug report: Why do you guys remove the Json Importer from UE 4.8? All atlases from TexturePacker can not be imported anymore on our projects. Is there a way to activate it? or maybe is there a ...
[CrashReport] Assertion failed: GIsHotReload inside UObjectBaseUtility::GetOutermost()
UE - Foundation - Core - Jun 14, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: GIsHotReload [Link Removed] [Line: 564] Source Context: 103 ...
[CrashReport] UE4Editor_OculusRift!FHeadMountedDisplay::GetCurrentHMDPose()
UE - Platform - XR - Jun 28, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: IsInGameThread() [Link Removed] [Line: 1047] Source Context ...
[CrashReport] Crash when painting foliage with a null static mesh
UE - World Creation - Worldbuilding Tools - Foliage - Jun 8, 2017This is a common crash occurring in the 4.16 release. User DescriptionsThis is the second time that it has vcrashed on me, ans it is really annoying. All I tryed to do was add a grass texure to a ...
[CrashReport] UE4Editor_Engine!UWorld::SetActiveLevelCollection() [world.cpp:6248]
UE - Gameplay - Sep 14, 2017This is a common crash that has been affecting users since 4.16. It may be unrelated, but a non-crash bug mentioned the same stack in [Link Removed] User DescriptionsI was creating a level and dra ...
LevelSequenceActorSpawner::GetLevelStreaming() fails to compare sub level names when running in Pie
UE - Anim - Sequencer - Sep 26, 2019The problem is in the function with signature "ULevelStreaming* GetLevelStreaming(FString SafeLevelName, UWorld& World)" within LevelSequenceActorSpawner.cpp at line 30. The problem is with the Safe ...
[Sound Submix] - Dry Level of a Submix is calculated differently whether or not there is an effect in the chain
UE - Audio - Submixes - Jan 21, 2021There is a discrepancy is how the output volume of a submix is calculated when the effect chain is and is not populated. When there is no effect on the submix, the Dry Level adds additional gain to ...
Invalid GUIDs on new material instance parameters cause overrides to break on base param rename
UE - Rendering - Architecture - Materials - Sep 3, 2025When a parameter value is assigned on a newly created material instance (constant or dynamic) using Set***ParameterValueInternal, the parameter’s ExpressionGUID is left invalid (0,0,0,0). Parameter ...
(Linux) - Editor crashes out when any change in project files
UE - Rendering - RHI - Oct 23, 2026POST LINK: https://forums.unrealengine.com/t/linux-editor-crashes-out-when-any-change-in-project-files/2733237 POST BODY:Summary Ue 5.8 Fresh install and basically fresh project. Any time Ue detec ...