Unreal Engine Issues
Unreal Engine Issues
Scaled Geometry Collection made from non-basic Static Mesh Crashes Editor
UE - Simulation - Physics - Destruction - Nov 14, 2022Reproduced 3/3 times. So far tested with the Chair and Statue from the Blank Template Editor Default level. Error Reads as follows:Assertion failed: IsValid() [File:D:\build\++UE5\Sync\Engine\Source ...
Deleting a Virtual Camera Actor disables Gamepad Input across Editor
UE - Virtual Production - Tools - Virtual Camera - Jan 6, 2023Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. Issue seems to occur when the Virtual Camera actor is fully initialized? If Editor is res ...
Cloud Presenter - Presentations with phasing may display all phases at once immediately after launch
TM - Tools - Oct 11, 2024Some Presentations containing Phasing will display all phases simultaneously in the Twinmotion Cloud after the Presentation is launched. Issue is consistently reproducible for affected Presentati ...
Crash occur when using AddSpawnableFromClass with BlueprintGeneratedClass specified
UE - Anim - Sequencer - Aug 13, 2019BlueprintGeneratedClass is not based UBleupint. So the following code is failed. bool UActorFactoryBlueprint::PreSpawnActor( UObject* Asset, FTransform& InOutLocation) { UBlueprint* Blueprint = ...
Sub Instance Root Motion issues
OLD - Anim - Dec 10, 2019Using multiple Sub instances with root motion does not behave as expected. With both the parent and sub instances set to 'Root Motion from Everything': In 4.22, too much root motion occurs. In ...
Set Relative Location on components does not replicate to clients
UE - Networking - Sep 2, 2015Set Relative Location on components does not replicate to clients. Reproduced in 4.8.3 binary, 4.9.0 binary, and Main (CL 2676715) ...
Changing particle system template via Blueprints crashes Editor and packaged game
UE - Niagara - Apr 4, 2019Setting a ParticleSystem component in a Blueprint to none/null with a "Set Template" node causes the editor and the packaged project to crash. I have noticed this when migrating my game to 4.22, whi ...
Crash when not saving level after using MovieRenderQueue for that level
UE - Editor - Content Pipeline - USD - Feb 8, 2022Crash when not saving level after using MovieRenderQueue for that level Repro rate 3/3 Regression Yes, issue is not reproduced on //UE5/Release-5.0-EarlyAccess at CL 16682836 from LauncherFatal er ...
Spline points cannot be selected on newly placed spline blueprints
UE - Editor - Workflow Systems - May 28, 2024Licensee reports a difference in behaviour in instanced blueprints containing SplineComponents from 5.3 to 5.4, with respect to whether a placed blueprint containing spline component instance can be ...
Bug in CurveLinearColor makes colors of Diffraction material white outside curve range, causing rendering artifacts
UE - Texture - May 14, 2025There seems to be a regression with linear textures (commonly for multi-channel masked textures) in UE5.4. Setting the "Encoding Override" (under Texture > Advanced > Source Color Settings) to "Line ...