Unreal Engine Issues
Unreal Engine Issues
Cine Camera focus does not blur transparent materials
UE - Graphics Features - Jul 9, 2018The cine camera focus does not blur transparent materials. Found In 4.18 CL# 3832480, 4.19 CL# 4033788, 4.20 Preview 5 CL# 4173640, 4.21 CL# 4195822 ...
Steam VR hitch with 3d UMG Widgets
UE - Platform - XR - Jul 30, 2018After ~30 minutes, a scene with 3D UMG widgets will hiccup, briefly showing the steamVR background Attached Example project from User VRDropedFrame (4.19) + Example project I created AJ_VRWidgetPe ...
Confusing message when attempting to connect mismatched Delegate pins
UE - Gameplay - Blueprint Editor - Aug 26, 2019When the user attempts to connect delegate pins that don't match, they received a confusing mouse tooltip message that simply reads "Delegate is not compatible with Delegate". Suggested fix: When ...
AnimBP instance is leaked when using linked animation graphs with 3 or more hierarchies
UE - Anim - Runtime - Sep 5, 2022When creating an AnimBP with 3 or more layers using linked AnimGraph nodes and going through a state where animation is initialized such as replacing SekeltalMesh, the AnimBP on the 3rd layer is not ...
AnimDrawDebug does not work if using RootMotion from Everything
UE - Anim - Gameplay - Feb 14, 2023Debug drawing with AnimDarwDebug~ does not work when RootMotionMode is set to "RootMotion from Everything". In addition, the same issue occurs when MultiThread of Animation is turned off. Licensee ...
XR Planar Reflections lag behind VR headset movement
UE - Platform - XR - Mar 24, 2023Planar Reflections lag behind VR headset movement [Link Removed] Reporting that reflection captures lag because they happen before late update is applied. Includes an experimental patch that fi ...
Auto Exposure Compensation Curve issue when switching from Manual to Histogram
UE - Rendering Architecture - Feb 21, 2024When switching the Camera's Exposure Metering Mode from Manual toHistogram, the exposure level resets and takes time to settle. The Licensee has a proposed code change that would fix this issue. Als ...
Importing static mesh while a PIE session is running permanently breaks nanite on the asset
UE - Editor - Content Pipeline - Import and Export - Mar 12, 2025Importing a Static Mesh during PIE can cause it to never enable Nanite, even if it reports that Nanite is enabled. To re-enable Nanite on the mesh, the asset needs to be deleted and imported again ...
Calling Finish Recording Output causes a crash in PIE
UE - Audio - Mar 23, 2020The Finish Recording Output node from the Audio Mixer BP Library crashes due to an invalid Path input. This is a regression from 4.23.1 (CL-9631420). This was reported and tested in 4.24.3 (CL-115 ...
Project crashes when auto save completes after copy/pasting emitters multiple times in a system
UE - Niagara - Aug 2, 2018Project crashes when auto save completes after copy/pasting emitters multiple times in a system Encountered same crash testing Blend_Attributes_System and ExpressionsExample_System. Doesn't seem to ...