Unreal Engine Issues

Gazing at decal material containing Texture_Bombing_POM causes the editor to crash

Malloc Leak Detection Crashes

macOS build appears to hang due to UBT deadlocking on ps buffer

Licensee reports buffer deadlock issue in System/BuildHostPlatform.cs (lines 283-329). Moving Proc.WaitForExit() to after the for-loop seems to resolve the issue for them.publicoverride ProcessInf ...

Force Feeback Attenuation assets can't be created in the editor

ForceFeedback Attenuation assets aren't an option because they are filtered out of the list  in UAssetToolsImpl::IsAssetClassSupported. This happens because there isn't a valid AssetTypeActions clas ...

Memory Leak With NullRHI

Crash when adding a pawn that has a SetSenseEnabled node set to true on Begin Play and then playing the game

When adding the SetSenseEnabled node to a Pawn and controlling another pawn that has an AIPerceptionStiumuliSource, the editor crashes. I tested using other senses such as Hearing and the crash occu ...

There is a moment of T pause when Post Roll Frames is enabled and snapping is enabled

When I turn off snap, the problem does not occur The problem does not occur in 4.24.3 and 4.25.4 Occurs in 4.26.2 and UE4main ...

RemoveWindSource modifies game thread array while in a parallel for loop.

FScene::RemoveWindSource is called from a parallel for loop, and concurrently deletes wind component pointers from the same game thread array causing crashes when the scene contains multiple wind so ...

Crash when adding a Material Layer with a Static Component Mask Parameter node to a Material Instance

When adding a Material Layer, that has a Static Component Mask Parameter node in it, to a Material Instance, the editor will crash.   The ability to set Material Attribute layers in a Material Inst ...

Sphere Trace Distance Field GPU function hides necessary Collision DI input

The collision DI input is a hidden input, but is necessary for compilation. The input node should likely be marked as required, not hidden.  ...