Unreal Engine Issues
Unreal Engine Issues
Engine Crashes When Converting an Int to Float For a Map Key In Blueprints
UE - Gameplay - Blueprint Editor - Dec 11, 2019The engine crashes when trying to automatically create a type conversion node when they are used a key for a map. Found in 4.24 CL#10570792 Reproduced in 4.25 Main CL# 10646676 ...
Volumetric fog flicker side screen
UE - Rendering - Architecture - Nov 29, 2023The flicker is visible in Epic scalability as well, it is just smaller on screen because the fog voxels are smaller (r.VolumetricFog.GridPixelSize). ...
Distance Field Ambient Occlusion artifacts when using dynamic resolution
UE - Rendering - Features - Mar 12, 2026Distance Field Ambient Occlusion produces artifacts when using Dynamic Resolution at lower framerates. ...
Substrate Unlit editor view mode renders black with Blendable GBuffer
UE - Rendering - Features - Shading Models - Mar 18, 2026When using Substrate materials with SUBSTRATE_GBUFFER_FORMAT==0 (Blendable GBuffer), the Unlit editor view mode renders completely black. TopLayerData.UnlitViewBaseColor is never populated in the bl ...
Notifies placed on the first frame of a montage using root motion don't fire
UE - Runtime - Animation - Aug 10, 2026This is a regression in 5.8 caused by 47265321. It's because we now perform the montage update and dispatch the queued notifies via CharacterMovementComponent::TickCharacterPose. But that all hap ...
Proxy Table allows creating a Nested Chooser, but Edit does not open it
UE - Runtime - Animation - Nov 3, 2026A Proxy Table entry allows selecting Nested Chooser and creating an embedded Chooser Table. The new Chooser's name appears in the entry, but clicking Edit does not open it, preventing us from config ...
Expand Node crashes engine
UE - Gameplay - Blueprint - Dec 4, 2014The engine crashes when after right-click > Expand Node on any composite node. Crash Report: [Link Removed] ...
GPU Particle Collision changes based on Normal Intensity on Colliding Surface
UE - Graphics Features - Jun 18, 2015Increasing the intensity of a Normal Texture on a colliding surface will cause the collision of GPU particles to behave strangely, looks to be falling through floor, when you are using a Constant Ac ...
Attaching a Skeletal Mesh by setting it's Parent Socket causes the mesh to be offset and rotated
UE - Gameplay - Oct 9, 2015Attaching a Skeletal Mesh by setting it's Parent Socket causes the mesh to be offset and rotated User Description: I still need to test using the BP you recommended. I tried again using the charac ...
'HighResShot 2' is not taking a screenshot for a packaged project
UE - Graphics Features - Mar 19, 2015When you attempt to take screenshot in a packaged project with the Console Command 'HighResShot 2'. This command works in editor but not in a packaged project. Issue with packaging in Main CL# 248 ...