Unreal Engine Issues
Unreal Engine Issues
Bright Flickering or Black Squares with Rectangle Lights Intersecting Meshes
UE - Graphics Features - May 31, 2024Rect Lights that intersect geometry can produce NaN pixels in SceneColor, which will affect bloom, FXAA, and other future passes. This can lead to large visible artifacts. The NaN values are produc ...
[CrashReport][Assert] UnrealEditor-D3D12RHI!FD3D12ResourceLocation::ReleaseResource() [Engine/Source/Runtime/D3D12RHI/Private/D3D12Resources.cpp:1392]
UE - Rendering - Architecture - RHI - Oct 22, 2024Users affected: 73 Total occurrences: 156 Last occurrence: October 22nd 2024, 9:59:58 am First occurrence: October 2nd 2024, 4:53:30 pm Latest version: ++UE5+Release-5.5-CL-36679577 Platform: Win64 ...
[CrashReport][GPU Crash] NodeAndClusterCull
UE - Rendering - Graphics Features - Nanite - Nov 19, 2024Users affected: 51 Total occurrences: 90 Last occurrence: November 19th 2024, 3:25:41 am First occurrence: August 7th 2024, 8:10:10 pm Latest version: ++UE5+Release-5.5-CL-37670630 Platform: Win64 [ ...
Unable to change Actor Coloration View Modes in PIE
UE - World Creation - Worldbuilding Tools - Jul 20, 2025When in PIE changing Actor Coloration view modes from the viewport visualisation mode [Liit] -> [Actor Coloration] -> ... Does not update correctly when switching view mode and sometimes isn't corr ...
Niagara - "Make Static" nodes do not seem to be working correctly.
UE - Niagara - Apr 7, 2025When a "Make Static" node is used in a Niagara Function Script or Niagara Module Script to supply the input value for a Static Switch Selector or, a Function Parameter, or a Function Parameter Defau ...
OcclusionFeedback may not be performant for primitives with large screensize
UE - Platform - Mobile - Dec 13, 2025A licensee reported that the performance could be worse in some scenarios (probably a small scene with large objects) with OcclusionFeedback enabled ( 20fps up if disabled), tested on a Qualcomm 870 ...
Using collapse to function on an event binding causes a crash when that function is referenced in another class
UE - Gameplay - Blueprint - Nov 28, 2016Collapsing an event binding to a function results in a function that takes in a delegate as an input. This function existing ends up causing any references to this blueprint class in another class t ...
Crash in Format Text node when replacing existing text with a string table reference
Tools - Jan 25, 2021The Format Text node may cause a crash when replacing existing hard-coded inputs with string table references. This looks to be dependent on whether or not the string table has been successfully use ...
Matinee movie recording is broken in 4.10
Tools - Dec 18, 2015When trying to record a movie from a matinee in 4.10, it can fail for a number of reasons: 1. The folder does not exist 2. The cinematic view modes do not take effect 3. Trying to record a streamin ...
Loops don't work with SimpleParallel BT composite node
UE - AI - Dec 16, 2014Loop decorators don't work with SimpleParallel BT composite node. We need to either fix it, or if we remove support for it restrict users from putting these decorators on SimpleParallel's children. ...