Unreal Engine Issues
Unreal Engine Issues
Setting PHYSX_MEMORY_STATS to 1 prevents the Engine from being built successfully.
UE - Simulation - Physics - Mar 9, 2015If #define PHYSX_MEMORY_STATS 0 is set to 1, the Engine will not build successfully. The build fails with the message: error C2338: FPhysXAllocationHeader size must be less than 16 bytes. ...
Screen Space Reflection Quality seems Inaccurate or Misleading
UE - Graphics Features - Jul 12, 2016A user has reported the SSR quality on Macs has no visible difference between 60.0 to 100.0. I was able to confirm this is the case and also found this to be true on PC as well. I noticed that the ...
Spinbox displays values that differ from the value of the delta
UE - Editor - UI Systems - Nov 1, 2017Spinbox displays values that differ from the value of the delta, when values are displayed for a spinbox their value always reads in the 0.000001 values, instead of listening to the delta. Unsure if ...
Double Properties break reset to default and inherited value propagation
UE - Gameplay - LWC - Apr 13, 2022This is an issue with how FPropertyValueImpl::ResetToDefault works: it uses GetDefaultValueAsString to reset the default value. This is problematic because the LexToString function that is eventuall ...
Chained physics constraints do not work correctly when one constraint is limited
UE - Simulation - Physics - Aug 12, 2017A chain of physics constraints that includes a physics constraint that is set to Limited does not work correctly. When collision occurs, the attached actors start moving erratically. Regression?: N ...
Missing Triangles on scaled MetaHuman assets with Nanite enabled
UE - Graphics Features - Nanite - Feb 19, 2025Additional information: only happens when all three conditions are true: the camera is very close to the character, the MH is Nanite, and a scaled mocap animation is appliedmaterial is opaque, shows ...
Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 input pin
UE - Graphics Tools - Modeling Tools - Jun 13, 2022Geometry Scripting plugin isn't available for 4.27.2, and the behavior is the same 5.0.1. Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 ...
ALT-Drag a non-DBuffer Decal will Crash the Engine
UE - Graphics Features - Jun 11, 2015When you ALT-Drag a Decal that is not using the Dbuffer settings, the Engine will crash. The issue is not reproducible in Main Promotable-CL-2581018 This is a regression. Worked in 4.7.6, broken ...
Disparity in Rotation tool
Tools - Aug 31, 2016There is disparity between the two different ways of editing rotation. When using the scrubber in the details panel each value scrubbed only affects that value and the values go from 0 to 360. When ...
Package fails to load due to EditorOnly data when launched onto Mac or Windows
UE - Foundation - Core - Jun 28, 2017LogPlayLevel: QAGame: [2017.06.28-14.09.14:706][ 0]LogLinker:Warning: Unable to load package (../../../QAGame/Content/UMG/UMG_Sprite.uasset). Package contains EditorOnly data which is not supported b ...