Switching project monitor with shift+win+arrow keys

Using Windows+Shift+Arrow keys to move the application window in Windowed Fullscreen from a low resolution monitor to a high resolution monitor does not resize the application window on a Windows 10 ...

Missing info in GPU breadcrumbs and DRED logs

UE - Graphics Features - Apr 21, 2025

Some breadcrumbs and D3D12 logs are missing data which should normally be filled in e.g. Breadcrumbs: > PostProcessMaterial %dx%d Material=%s [Active]. After investigating this, there seems to be a ...

Memory leak in distance fields with bDisableWorldRendering

UE - Graphics Features - Apr 17, 2025

There is a memory leak in the Distance Fields category when a mesh continuously moves through the world and the scene is being captured with bDisableWorldRendering set to true. This issue occurs on ...

Niagara Position Mode Unset results in World Space rather than Local Space

UE - Niagara - Scripting - Apr 16, 2025

When an emitter's Position Mode is Unset, the particles spawn in World Space 0,0,0. This is unexpected. If the Position Mode is Unset in 5.4, the particles remain in Local Space, which is the inten ...

Anisotropy of material looks different when set via a scalar parameter node connected to the material node

UE - Graphics Tools - Texturing Tools - Apr 15, 2025

The Anisotropy of a material looks different when set on the material output node vs when set via a scalar parameter node connected to the material node ...

World Partition - Deleted actors can become unloaded prior to saving

UE - World Creation - Worldbuilding Tools - World Partition - Apr 11, 2025

In world partition levels, deleted actors can become unexpectedly unloaded prior to saving, causing loss of work. Specifically, this issue occurs after the undo history has been cleared (either manu ...

Nanite TwoSidedSign is backwards

UE - Graphics Features - Nanite - Apr 10, 2025

The value of MaterialExpressionTwoSidedSign is flipped when calculating the Opacity Mask for Nanite meshes. This seems to be a regression in 5.5. ...

Commandlet Exits With Code -1073741819 and Exception FPlatformMisc::RequestExitWithStatus(1, 3, WindowsPlatformCrashContext.EngineUnhandledExceptionFilter)Engine exit requested (reason: Win RequestExit; note: exit was already requested)

UE - Foundation - Apr 9, 2025

When a commandlet is run it successfully completes but does not terminate the engine correctly. It appears that multiple requests are made to terminate the engine process these subsequent engine ter ...

Child widgets do not maintain the Enhanced Input bindings from their parents

UE - Editor - UI Systems - Apr 9, 2025

When a widget blueprint is created with Enhanced Input bindings in the event graph, when it is subclassed those bindings will not work in the child. This is inconsistent with how Actors function, an ...