Unreal Engine Issues
Unreal Engine Issues
Check the status of an issue or Search for an existing issue.
Crash editing Primary Assets Label in ShooterGame assets in 5.8
UE - Content - SampleNiagara NDC GPU Instance Counter leak
UE - NiagaraIn NiagaraDataChannelData.cpp, FNiagaraDataChannelDataProxy::EndFrame enqueues a GPU readback for each entry in PendingGPUReadbackBuffers, but...
Water plugin's RVT/ISR shader permutations fail PSO creation with instanced stereo (D3D12 SM6)
UE - Rendering - Architecture - RHIWith Instanced Stereo Rendering enabled and the Water plugin enabled (default), PSO precaching speculatively compiles WorldGridMaterial × FWat...
UBackgroundBlur crashes at PSO creation under D3D12 SM6 when stereo rendering is enabled
UE - Editor - UI Systems - SlateAny Slate widget that triggers the Slate post-process blur (e.g., a UBackgroundBlur with non-zero strength) hits a fatal D3D12 CreateGraphicsP...
Crash in UWidgetAnimation::CreateDirectorInstance when switching resolution
UE - Anim - SequencerHello, We've encountered a crash in UWidgetAnimation::CreateDirectorInstance when repeatedly switching resolutions. We've had it for a while ...
Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window
UE - Editor - Workflow SystemsKeyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window. As described in Steps To Reproduce, as soon as th...
Lumen lighting in Presentations may appear darker than in Viewport
TM - RenderingReported in SF [Link Removed] In some scenes with Lumen enabled, interior scene lighting without direct lighting can appear drastically darke...
Instanced Actors: PCG on RuntimeGrid "None" assigns created IAManagers RuntimeGrid "MainGrid", causing cross-grid reference
UE - World Creation - Procedural Tools - PCG GraphContext PCG can be used to spawn Instanced Actors via the PCG IA Interop plugin, that makes Spawned Instanced Actors available as node. When ...
Twinmotion sign-in error when attempting sign-in inside app
TM - CoreReported in SF [Link Removed] Attempting to sign into Twinmotion from within the TM 2026.1 editor results in a consistent sign-in error using...
[Enhanced Input] Chord trigger fails when its referenced action lives in a lower-priority IMC
UE - Gameplay - InputSummary A UInputTriggerChordAction does not fire when the action it references (the "chording action") is mapped in a different Input Mapping C...