Unreal Engine Issues
Unreal Engine Issues
Outline artefact on cascade shadow transition
UE - Graphics Features - Mar 28, 2024Some pixels at the edge between cascaded shadow maps and distance field shadows can be skipped by both, leading to unshadowed pixels. Licensee reports the bug happening in 5.3 as well. Test project ...
AI Perception UnregisterSource Sense == nullptr does not affect pending adds
UE - AI - Perception - Jun 15, 2022UAIPerceptionSystem::UnregisterSource according to its documentation should treat Sense == null as targeting all sources, but the code for removing pending sources does not treat Sense == null as th ...
Editor crash when adding to Instanced Static Mesh Component is created/populated at runtime.
Tools - Sep 26, 2017If NewObject is used to create an instanced static mesh component at runtime, populating the component with AddInstance causes the editor to crash. Regression: Yes - repro steps provided did not cr ...
Actor references in Level Blueprint show an incorrect display name after converting the project from 4.6.1 to 4.7 Preview or 4.8
UE - Gameplay - Blueprint - Jan 26, 2015Actor references in Level Blueprint show an incorrect display name on their nodes after converting the project from 4.6.1 to 4.7 Preview or 4.8. Reproduced in 4.7.1 Preview 4 and in Main (Promotabl ...
Editing bsp within folder in world outliner will unhide bsps within a subfolder
UE - LD & Modeling - Modeling Tools - BSP - May 4, 2016Editing bsp within folder in world outliner will unhide bsps within a subfolder Regression (No) issue (does) occur in 4.10.4 ...
Refreshing node does not resolve error and causes tooltip to display another line with same message with each refresh.
UE - Gameplay - Apr 14, 2017Clicking the compile button in the Blueprint editor resolves the error. ...
Movie Render Queue shows different behavior when a sequencer window is opened
UE - Anim - Sequencer - MRQ - Nov 20, 2023When running Movie Render Queue job for a sequence which uses FKControlRig and a sequencer window is opened, Track->ReplaceControlRig() is called every single frame, not only an initial frame. This ...
[Substrate] Workaround for DXC problem with roll unlooping
UE - Graphics Features - Substrate - Apr 8, 2024We should get to the bottom of this workaround and revert it eventually. Reported here: [Link Removed] ...
Nanite Mesh Dither Opacity Mask Not Working in 5.6.0
UE - Graphics Features - Nanite - Jul 30, 2025In Unreal Engine 5.5.4, the Dither Opacity Mask option in a Masked material works correctly on Nanite meshes. However, in version 5.6.0, the dithering effect no longer applies to Nanite meshes. ...
[CrashReport] UnrealEditor-AnimGraph!UAnimGraphNode_Base::GetAnimBlueprint() [AnimGraphNode_Base.h:306]
UE - Anim - Sequencer - May 16, 2022Generated from CrashReporter ...