Unreal Engine Issues
Unreal Engine Issues
NavLinkProx's link direction issues
UE - AI - Apr 25, 2015NavLinkProxy does not react to changes to LinkDirection in the editor. it also seems that link direciton setup doesn't get applied even when link's update is forces by moving NavLinkProxy actor. ...
Precomputed AO Masks cannot be used to LERP between Normal Maps
UE - Graphics Features - Sep 18, 2015When using the Precomputed AO Map node to LERP between 2 Normals, only the A input into LERP will render out on the mesh. The Precomputed AO will work fine for Base Color LERPs Example: [Image Re ...
Child component that is not simulating physics returns true value with IsSimulatingPhysics node
UE - Gameplay - Feb 2, 2016Child component that is not simulating physics returns true value with IsSimulatingPhysics node User Description: "Is Simulating Physics" bp node will return true for any child component if root/p ...
BSP brushes get Clipped or Disappear relative to the Surface Normals of a nearby Brush when Deleting/Flipping Faces
UE - LD & Modeling - Modeling Tools - BSP - May 1, 2017While testing this issue it was interesting to discover how the surrounding BSP's were affected. They seemed to clip/disappear according to the surface normals of the deleted brushes. There is a si ...
Depth Fade Particles are not rendered on iOS when Mobile HDR disabled
UE - Graphics Features - May 7, 2015Depth Fade and Fresnel inputs in a Particle's Material will result in the particle not rendering unless Mobile HDR is checked true on an iOS device. Also Reproduced in Main Promotable-CL-2535351 S ...
Thare are some case in which KeepState doesn't work propely if level sequence have multiple Shot and Transform Tracks
UE - Anim - Sequencer - Feb 16, 2021if fulfilling following conditions, KeepState setting of transform track doesn't work.level sequence have 3 or more shot have camera track and actor track have transform tracktransform track of acto ...
Tabbing out of editor while dragging a folder leaves it in drag state when returning to editor
Tools - Aug 4, 2016Had found the folder was stuck in this state, and eventually figured out it came from tabbing in and out looking for other info. Edit: We should probably cancel whatever drag is in progress if som ...
Not all MidPhases are enumerated in TSimCallbackObject::OnMidPhaseModification
UE - Simulation - Core - Dec 2, 2025Newly generated MidPhases are copied into the array accessible in the NarrowPhase after the OnPreSimulate callback is invoked. As a result, it is not possible to modify newly created MidPhases withi ...
Not all MidPhases are enumerated in TSimCallbackObject::OnMidPhaseModification
UE - Simulation - Core - Dec 2, 2025Newly generated MidPhases are copied into the array accessible in the NarrowPhase after the OnPreSimulate callback is invoked. As a result, it is not possible to modify newly created MidPhases withi ...
Sequencer - Pressing Add Key on Rotation-Yaw increases the key value exponentially
UE - Anim - Sequencer - Apr 24, 2019Not a critical bug but add unnecessary workload since the user found himself constantly checking Yaw values. ...