Unreal Engine Issues
Unreal Engine Issues
FIXIF: Using the Merge Blueprints feature crashes the editor
UE - Gameplay - Blueprint - Feb 18, 2015Using the Merge Blueprints feature crashes the editor. This repro is for clicking between the error and warnings while merging, but the editor will generally crash if the Merge is finished or if an ...
[CrashReport] FSlateRHIRenderer::ConditionalResizeViewport()
Tools - Jul 27, 2017This is a common crash occurring on Windows and Mac in 4.15 and 4.16 (two different callstacks with close similarities). The callstack is also similar to [Link Removed] and may be related. User D ...
Editing an array config property via ProjectSettings can end up editing other platform config properties.
UE - CoreTech - May 27, 2024Platforms .ini config files can end up with incorrect data, due to how ProjectSettings manages the config data. On a Windows machine, if we open the ProjectSettings window, all the data is going to ...
Rearranging the position of enumerators in an Enum BP will change references to the enumerators inside Data Tables based on position rather than value
Tools - Nov 12, 2015Rearranging the position of enumerators in an Enum BP will change references to the enumerators inside Data Tables based on position rather than value. Reproduced in 4.8.3 binary, 4.9.2 binary, 4.1 ...
Cvars sections in Sequencer behaving incorrectly when using MRQ
UE - Virtual Production - Tools - MRQ - Aug 9, 2023Some key lines in the code:Engine\Source\Runtime\MovieSceneTracks\Private\TrackInstances\MovieSceneCVarTrackInstance.cpp:177 --> Apply CVar when entering sectionEngine\Source\Runtime\MovieSceneTra ...
Blueprints not marked dirty when variables in referenced actors are renamed
UE - Gameplay - Blueprint Compiler - Feb 20, 2018Blueprints using renamed variable do not indicate that they need to be recompiled. (However errors are shown on play) It is possible to not see an error if you add a variable with the same name as ...
iOS/tvOS fails to build from source editor built with Xcode 9.3, macro expansion producing 'defined' has undefined behavior
UE - Platform - Mobile - Apr 2, 2018Trying to launch on or package for TVOS or iOS from a source build of Mac or Windows will fail with errors:[2018.04.02-16.35.08:522][634]LogPlayLevel: In file included from /Volumes/Storage/GitHub ...
[CrashReport] UE4Editor_LevelEditor!SLevelViewport::BindShowCommands() [slevelviewport.cpp:1429]
Tools - Nov 10, 2017This is a longstanding but infrequent crash that has occurred since at least 4.16.1. Users have not provided any descriptions of their actions when the crash occurred. The callstack closely matche ...
[CrashReport] UE4Editor_Core!FText::IsEmpty() [text.cpp:230]
Tools - Apr 6, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Index >= 0 [Link Removed] [Line: 401] Source Context: 215 ...
"FVector contains NaN" on packaged builds for Debug configuration
UE - Graphics Features - Lumen - May 6, 2022Customer Provided Description:This was experienced in UE 5.01 - custom installed engine (No changes to UE code, simply added the Debug build configuration, see the following command): "c:%ue_dire ...