Unreal Engine Issues
Unreal Engine Issues
Crash occurs when a Const Vector 4 and a Screen Position node are passed into a LERP then connected to the Result Node
UE - Rendering Architecture - Materials - Oct 13, 2022Tested in: //UE5/Release-5.1 CL22346211 Crashed with Assertion //UE5/Release-5.0 CL20979098 Crashed with Assertion Crash occurs when a Constant Vector 4 and a Screen Position node are passed into a ...
Blending Animations between Third Person Project and Animation Starter Pack results in "dipping below floor level"
Docs - Samples - Aug 5, 2015A number of users have reported that blending animations between Third Person Project and Animation Starter Pack results in a "dipping below floor level" between the two animations. The cause of th ...
GetTeamAttitudeTowards is called before AI Controller can spawn and gets a null value
UE - AI - May 6, 2019Licensee is experiencing an issue where GetTeamAttitude is being called before the AI Controller's Construction event. This results in the warning "GetTeamAttitudeTowards - Pawn is null!" being outp ...
Motion Controller Components Don't Track Motion Controllers
UE - Platform - XR - Jan 17, 2020The motion controller component doesn't track motion controllers correctly. This worked in 4.23. If you create a VR template project and follow the repro steps this issue doesn't occur. This was t ...
Morph targets unable to find B Material
OLD - Anim - Aug 2, 2016Morph targets are not changing colors in some instances and just not doing anything in others(1.1 in Content Examples - MorphTargets) The output log is spammed with: LogMaterialParameter: B materia ...
Autobrake feature in ChaosVehicleMovementComponent is stopping vehicle from sleeping
UE - Simulation - Physics - Mar 5, 2025In ChaosVehicleMovementComponent::CalcThrottleBrakeInput, autobrake is set when a vehicle is stopped - this means that when the car is virtually stationary, the BrakeOut inout parameter is always 1. ...
Blueprint Viewport Not Updating When Destructible Mesh Component is Assigned a Mesh
UE - Simulation - Physics - Destruction - Apr 18, 2016When you add a Destructible Mesh to a Destructible Mesh Component inside of a blueprint, the viewport is not updated with the new mesh. If you add the blueprint to the level and then open the bluepr ...
Capsule Indirect Lighting with ILCQ Volume breaks on Skeletal Meshes when making Sublevel visible not in the current Camera Frustum
UE - Graphics Features - Apr 12, 2017When using Capsule Indirect Shadows for Skeletal meshes who have their ILCQ set to Volume, and loading a SubLevel with it's actors not within the current camera's view, the indirect lighting is blac ...
A function in a Blueprint Function Library that references another function in that library cannot be saved after closing and reopening the project
UE - Gameplay - Blueprint - Mar 1, 2015A function in a Blueprint Function Library that references another function in that library cannot be saved after closing and reopening the project. The library will save without error until the pro ...
Skybox Textures Have a Seam When Using a Cube With Inverted Normals
UE - Graphics Features - Feb 14, 2020Skybox textures can have a seam when using an inverted cube for a sky. Attached is an example 4.24.2 project. Note: One of the attached seam screenshots is hard to see unless you expand it. Found ...