Unreal Engine Issues
Unreal Engine Issues
Z order in based on the position in the Hierarchy is reversed in 4.9
UE - Editor - UI Systems - Oct 13, 2015The Z order that is given to a widget based on it's position in the Hierarchy panel in 4.9 goes from bottom of the hierarchy to the top (The bottom widget is the front most widget) instead of the to ...
Skeletal Mesh Collapses with OpenGL ES3.1 on Tegra K1 devices
UE - Platform - Mobile - Oct 18, 2016When launching to an Android device that supports ES3.1 skeletal meshes seem to collapse in game. ...
Deadlock running anim modifiers that affect bone tracks on multiple sequences
UE - Anim - Runtime - Mar 11, 2025Running anim modifiers that affect bone tracks can deadlock the editor when applied to multiple anim sequences. ...
ContentExamples: PhysicalAnimation Example 1.2 the P in "BluePrint" is capitalized
Docs - Samples - Jan 19, 2017The P in "BluePrint" is capitalized in Example 1.2 of PhysicsAnimation level. The word Blueprint should match the documentation https://docs.unrealengine.com/latest/INT/Engine/Blueprints/index.htm ...
MRQ - No Rayrtaced Shadows casted from Groom Caches with only 1 Spatial Sample
UE - Graphics Features - May 28, 2025A groom cache will not cast a raytraced shadow with only 1 spatial sample. It does not matter how many temporal samples you have. ...
REGRESSION: HierarchicalInstancedStaticMeshComponent LOD transitions are broken in 4.9 and Main
UE - Graphics Features - Aug 24, 2015While testing another fix I noticed HISM LOD transitions are not working in Main or 4.9 branch. There is no screen-door effect and multiple LODs seem to be rendering simultaneously compared to 4.8. ...
ContentExamples: StaticMeshes Example 1.7 "StaticMeshEditor" is all one word
Docs - Samples - Jan 19, 2017StaticMeshes Example 1.7 "StaticMeshEditor" is all one word The word Static Mesh Editor is 3 separate words in unreal documentation https://docs.unrealengine.com/latest/INT/Engine/Content/Types/Sta ...
Child Actor component is not affected by the 'Visible' and 'Hidden in Game' settings
UE - Gameplay - Apr 16, 2015Child Actor component is not affected by the 'Visible' and 'Hidden in Game' settings. It is still rendered in the bp viewport and in the level during play. Even if the 'bpSelf' is set to hide in g ...
Snap to Bone doesn't actually affect the rotation of a Constraint in the PhAT editor
UE - Simulation - Physics - Feb 20, 2018Snap to Bone doesn't actually affect the rotation of a Constraint in the PhAT editor. The visualizer does show the expected rotation but the Constraint will still rotate in the same direction it was ...
ARKit: Metal Desktop Renderer + Metal v2.1 = Black View
UE - Platform - XR - Jan 26, 2020If Metal Desktop Renderer and Metal v2.1 are both active, the AR passthrough camera renders as black. Issue not observed if only 'Metal Desktop Renderer' or 'Metal 2.1' is selected Issue not obs ...