Unreal Engine Issues
Unreal Engine Issues
LogUMG: Error: The requested size for SRetainerWidget is 0. W:739 H:0 when opening or updating a curve using the StackedCurve view
zComponent - Archive - Feb 6, 2023The following error is generated in the Output log whenever a Wave Table is opened or any of the graphs are modified. It also occurs when adding an Input to a Sound Modulation Parameter patch or add ...
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 ...
Editor Crashes When a Component and Actor Implement Two Interfaces
UE - Gameplay - Blueprint - Oct 16, 2015The editor crashes if you implement two blueprint interfaces in an actor blueprint, and then an actor component blueprint. These interfaces must have at least one function that returns a value. The ...
Startup Movies Fail to Play when Audio Devices are Disabled
Tools - Feb 1, 2016If a user launches a project in Standalone mode and has a Startup movie while the audio devices on the computer are disabled, the movie will fail to play. As soon as you re-enable an audio device, ...
Clicking Off of a Blueprint Node Does Not Save Changes Made to Comment Bubble
UE - Gameplay - Blueprint - Dec 9, 2015When entering a comment on a Blueprint node, pressing Enter or clicking off of that node both appear to apply the changes made to the comment. However, clicking off of the node does not mark the Blu ...
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 ...
[DataLayer] Optimize Data Layer runtime state replication
UE - Engine Scaling - Streaming - Data Layers - Dec 7, 2023[Link Removed]This issue occurs only when I have a lot of RDLs (I tested 2500 and 1600). I tested with 6 RDLs and had no issuesI also noticed in the server log an error when a lot of RDLs are presen ...
Autobrake feature in ChaosVehicleMovementComponent is stopping vehicle from sleeping
UE - Runtime - Simulation - 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. ...