Unreal Engine Issues
Unreal Engine Issues
Spline don't deform landscapes in certain setups
UE - LD & Modeling - Terrain - Landscape - Dec 26, 2019The splines do not deform the landscape when the path is made with a straight spline. When you move a spline point to bend the road it will deform the landscape, but the deformation accuracy seems t ...
Crash on merge actor when Use specific LOD Level
UE - World Creation - Worldbuilding Tools - HLOD - Feb 26, 2018Merge Actor crash when specifying Use specific LOD Level, and the actor has a collision component ...
Virtual texture fallback displays in incorrect color space on mobile platform (VT:OFF) Preview
UE - Platform - Mobile - Sep 28, 2025FPropertySoftPath::Resolve doesn't resolve c-array elements properly
UE - Framework - Nov 20, 2023a fix was proposed in the UDN but it needs to be tested and revised ...
PoseSearch Query is flipped 180 degrees 1 frame after a capsule/actor rotation happens.
UE - Anim - Gameplay - Sep 3, 2025Using MotionMatching with a PoseSearchSchema with a Trajectory grouping. The query gets rotated to match the capsule/mesh component instead of the offset root/actual location of those bones/trajecto ...
Changelists window refreshes excessively
UE - Editor - Workflow Systems - Jan 21, 2022When View Changelists window is opened, users are reporting slowdowns from actions such as moving actors (external actors). ...
GPU Lightmass does not support bounce lighting from landscapes
UE - Graphics Features - Jun 29, 2024GPU Lightmass does not support bounce lighting from landscapes, but CPU Lightmass does. ...
Editor crashes when a floating window PIE command is issued repeatedly
Tools - Oct 4, 2016After assigning Keyboard Shortcut for New Editor Window (PIE) as "F3" and returning to Viewport and selecting "F3" to open New Editor Window (PIE), continuing to repeatedly press F3 results in the e ...
Key input by Sequencer is missing in FBX output of parent-child actors
UE - Anim - Sequencer - Nov 15, 2021This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A) ┗Actor(B) ┗Actor(C) This is how the attachments are registered, and the ke ...
When using a SpeedTree asset, a Zero Triangles warning appears
Tools - Nov 25, 2019When exporting from SpeedTree with LODs + billboard, It seems that a warning is issued by including a material used only by Billboard. Is there a way to deal with it? ...