Unreal Engine Issues

r.Shaders.Optimize=0 crashes when compiling a UI material

[2024.08.30-22.12.22:384][ 73]LogWindows: Error: appError called: Assertion failed: CurrentGPUVirtualAddress != 0 [Link Removed] [Line: 659] Disabling shader optimisation can crash the editor when ...

Crash when exiting editor before EditorUtilityTask completes

If exiting the editor before the EditorUtilityTask completes, it crashes. It will not crash if canceling the UtilityTask and then exit the editor. The following implementation does not allow destruc ...

Spline mesh crashing in FRayTracingDynamicGeometryCollection::AddDynamicMeshBatchForGeometryUpdate

A crash occurs when using ray tracing with spline meshes preceded by the following ensure : Ensure condition failed: NumCPUVertices <= VertexBufferNumElements  File: Engine\Source\Runtime\Renderer\ ...

Intermittent Crash in Pose Search during Cook

User reports that they've been running into an intermittent crash in Pose Search during Cook. Pose Search attempts to index data outside the bounds of an array. Based on the logs, each asset seems t ...

Crash at startup when vcomp140.dll prerequisite is missing.

Some users are experiencing a Crash at startup because of missing vcomp140.dll prerequisite. ...

FBoneContainer::MakeMeshPoseIndex crash (out-of-bounds array)

Displaying Revision control history for a file ending in an "undo" of a revision can cause a crash

This crash is caused by how source control history is managed and shown. In this specific case the source control software is Perforce. As written in the repro steps, it can happen to any uasset tha ...

Crash when seamlessly travelling from World Partition map

Based on the licensee's report, the crash seems to be occurring due to the WorldDataLayers actor, and setting this actor to never be dormant seems to resolve the issue. ...

FGeometryCacheSceneProxy crashes engine when rendering through command prompt

Came across this bug when verifying [Link Removed]. Seems there was a different crash reason. When testing, this bugs seems to happen only half the time while the other half it succeeds without issu ...

UObjects returned from "Get Item Children" in a TreeView widget causes an engine crash, due to invalid pointers

UObjects returned from "Get Item Children" in a TreeView widget causes an engine crash, due to invalid pointers. User has proposed the following fix: The best fix is probably such: When Slate list ...