[CrashReport] UE4Editor_MaterialEditor!SMaterialLayersFunctionsInstanceTree::UpdateThumbnailMaterial() [smateriallayersfunctionstree.cpp:1128]

Tools - Feb 27, 2018

No user comments in crash group 1114 for (TSharedPtr<FStackSortedData> Group : AssetChild->Children) 1115 { 1116 if (Group->ParameterInfo.Association == InAssociation) ...

Crashes when applying material on objects after changing UV mapping parameters with Lumen enabled.

TM - Core - Jun 20, 2024

Info from the user: "This is super basic, only just started to build the scene. I have modeled in Vectorworks 2024 Architect and imported it into Twinmotion via the export and not the live link. The ...

Character jumping between two moving platforms will incorrectly inherit the sum of both platform velocities

UE - Gameplay - Player Movement - Nov 26, 2024

A character standing in a base will match its velocity to the base's velocity. If that character jumps into another base its velocity will be added to the new base's velocity and the character will ...

UMG widget callbacks do not set PIE context in editor

UE - Editor - UI Systems - May 21, 2018

This is from a UDN post. Several gameplay functions, such as level streaming and SoftObjectPtr resolution, depend on the GPlayInEditorID being set when that code is executed in PIE in the editor. T ...

FRootMotionMovementParams::Accumulate can trigger an exception in debug-editor when using a cached pose

UE - Anim - Rigging - Jan 11, 2018

When you are using the editor compiled as debug-editor, combining the use of a pose cache, RootMotion Everything setting, could trigger an exception. ...

Race condition triggers an ensure 'bIsInitialized && Other.bIsInitialized' inside FVisualLogEntry::MoveTo on animation worker thread

UE - AI - Debugging - Oct 18, 2024

A licensee reported occasionally triggers an ensure during automation testing, potentially when the GameThread flushes Visual Logger via FVisualLogger::Flush() and an animation worker thread executi ...

RHILockTexture crash with ray tracing enabled

UE - Graphics Features - May 25, 2021

Looks like it's a resource state tracking assert issue on the resource. ...

Launching any QAGame map on Linux with an NVIDIA Card crashes at launch

UE - Graphics Features - Mar 11, 2022

Workaround:  "Start with "-windowed" in your command line until the issue is resolve" Engine does not crash. However, a crash appears when the game is launched in the output log. Issue is occurring ...