Unreal Engine Issues
Unreal Engine Issues
Unexpected behavior resulting from overlapping or touching physics actors when Simulate Physics is enabled through input
UE - Simulation - Physics - Sep 21, 2015Weird behavior occurs when toggling Simulate Physics on physics actors by input instead of on BeginPlay. Multiple odd behaviors are present such as touching physics actors ignoring collision. Test ...
Key "F" for Focus acts Sporadically in the Static Mesh Editor Viewport
Tools - Dec 15, 2016In the Static Mesh Editor Viewport, hitting "F" for Focus results in placing the view camera sporadically so that mesh is not always centered and frequently out of frame altogether. Regression: Yes ...
Randomize Without Replacement resets to WithReplacement on Sound Cue Loop
UE - Audio - Dec 8, 2022Reproduced 7/10 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...
Reordering Instance Editable arrays in a Character Blueprint breaks the array
Tools - Nov 14, 2017When re-arranging an array that has been added to a character blueprint, the array adds an empty value to element [0] and leaves it in a broken state. I tested this using the Level blueprint as well ...
Renaming a shot through the shot track does not rename the underlying sequence asset
zComponent - Archive - Aug 7, 2023Renaming a shot through the shot track does not change the name of the underlying asset, and causes it to no longer match when looking for takes ...
Landscape weight-blended layers don't paint exclusively anymore
UE - Graphics Tools - Terrain - Landscape - Nov 20, 2025Components attached via AttachToComponent do not animate correctly when recorded by sequencer
UE - Anim - Sequencer - May 25, 2016When an actor is attached by the root to a bone of a skeletal mesh through the use of the "AttachToComponent" function in code, it will not follow animations when being recorded by the Sequencer Rec ...
[CrashReport] Assertion due to failing to find shader type
UE - Graphics Features - Apr 26, 2017This is an early trending crash in the 4.16 Preview. User information has not been provided, but this shares similarities to an old jira [Link Removed]. Source context: 1434 /** Finds the ...
Changing Shadow Quality causes SingleLayerWater Materials to disappear
UE - Rendering - Architecture - Materials - Nov 15, 2022Regression: Tested in UE5/Release-5.0, issue is reproduceable. This issue appears to be related to the Opacity Mask of the material, as not having an Opacity Mask does not cause the material to dis ...
GPU Crash from invalid SRV in CreateShaderResourceView due to integer underflow
UE - Rendering - Features - Ray Tracing - Jan 13, 2025The GPU crashes after the ray tracing geometry builder attempts to create a shader resource view with an invalid offset. ...