Unreal Engine Issues
Unreal Engine Issues
Child Actors are not replicated to clients when the parent blueprint is nativized
UE - Gameplay - Feb 22, 2019Child actors do not replicate properly to clients when their parent blueprint is nativized. Regression?: Yes This did not occur in 4.20.3 See also [Link Removed] ...
GeometryCollection with StripOnCook and without EnableNanite causes a crash in cooked game
UE - Simulation - Physics - Destruction - Jun 16, 2023The Strip on Cook option seems to strip even necessary data. ...
Multigates only fire the first output when inside a function
UE - Gameplay - Blueprint - Apr 2, 2015Multigates only fire the first output when inside a function. The same setup in the Event Graph will function as intended. Reproduced in 4.7.4 binary and Main (//depot/UE4/Promotable-CL-2498147) ...
Difference in Physics on Client in Standalone vs PIE
UE - Networking - Dec 3, 2015Difference in force on an actor on a client in a dedicated server scenario between PIE and Standalone. Tested in 4.10 and 4.11. Test project attached. ...
Color and Opacity animation option does not play for Button component
UE - Editor - UI Systems - Aug 25, 2017Color and Opacity animation option does not play for Button component, this occurs both in the Widget editor and during play. This issue is not a regression Versions Tested: 4.16.3 - CL: 3561208 - ...
Infinite loop in UAnimSequence::ExtractRootMotion when sampling backwards
UE - Anim - Gameplay - Dec 6, 2021When sampling root motion backwards we can hit an infinite loop in ExtractRootMotion. This happens if the initial sample time + negative delta is off the end of the animation clip. In that case FA ...
UE5.4 Regression - crash when disabling shader optimization while raytracing is enabled on D3D12
UE - Rendering Architecture - Shaders - Jul 15, 2024Certain interactions between a Rect Light with a Light Function and a Post-Process volume lead to a check() when compiling a Ray Tracing PSO for tracing lights. This check() only happens when shader ...
Setting size of GameViewportClient gives different results on Android than in Editor
UE - Platform - Mobile - Feb 9, 2017Setting size of GameViewportClient gives different results on Android than in Editor OpenGL ES renders with the viewport origin in the bottom left, so that's potentially related to the problem. A ...
Min Roughness Light Setting Does Not Work In Forward Shading
UE - Graphics Features - Mar 1, 2017Min roughness in the light settings currently aren't working in the forward shading mode. ...
Particle System Components don't inherit owner's time dilation
UE - Niagara - Feb 7, 2020This is a regression introduced by the particle system manager. It does not account for the owning actor's time dilation when ticking the particle system components. ...