Unreal Engine Issues
Unreal Engine Issues
TVOS - Adding Game Center image assets causes build script error
UE - Platform - Mobile - Nov 25, 2019"We are trying to add required Game Center assets to our Apple TV project. We are using the source code version of UE4. It seems that the editor UI does not support adding the Game Center leaderboar ...
Two-sided geometry cannot be enabled for re-imported models when converting from previous versions
TM - Interoperability - Jan 28, 2025When converting files from previous versions of Twinmotion to Twinmotion 2025.1, re-importing any existing imported geometry will cause the geometry to be re-imported with two-sided geometry disable ...
.mp4s cannot be played in default projects in UE5.
UE - Media Framework - Apr 6, 2022In UE4 (using DX11), WmfMedia was able to play .mp4 files by default. However, WmfMedia doesn't support playing .mp4s in DX12, which is what is used in UE5. Electra can handle playing .mp4s in UE5, ...
LogUMG: Error: The requested size for SRetainerWidget is 0. W:739 H:0 when opening or updating a curve using the StackedCurve view
UE - Anim - Sequencer - 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 ...
Merge Actors Tool Simplifies Nanite Meshes
UE - World Creation - Worldbuilding Tools - Merge Actor - May 19, 2023Tried every combination of LOD Selection Type, Nanite enanbled/disabled, the only way it would seem to get the full number of triangles from the source mesh into the merged mesh is to disable Nanite ...
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 ...