Unreal Engine Issues
Unreal Engine Issues
Incorrect box collision on negatively scaled mesh
UE - Simulation - Physics - Jul 23, 2018If you have a mesh with a rotated box in its simple collision primitives, that box won't be in the correct position if you scale the mesh by -1. This issue was reported in 4.20 (CL-4212847) and rep ...
Can't call Load Stream Level in a Blueprint function
UE - Gameplay - Jul 27, 2018"Load Stream Level" can be called in the Event Graph of any Blueprint but it can't be called in a Blueprint Function or Function Library. This was reported in and tested in 4.19 (CL-4033788) and re ...
Curl Noise Force Not Applying to Niagara Emitter
UE - Niagara - Jul 30, 2018Curl noise force will not affect a Niagara particle regardless of strength. Current work around is to disable then re-enable "apply forces" under "solve forces and velocity" Found in 4.20 CL# 4233 ...
Instance's parameter value for Child BP is not reflected in cooking if parent is nativized
UE - Gameplay - Blueprint - Jul 31, 2018If an instance of a child BP has a non-default value for its parameters, that value will be ignored in the cooking process if the parent BP is nativized but the child is not and the default value fr ...
CurrentTransaction ensure when duplicating an EQS generator
UE - AI - Aug 3, 2018When duplicating a Generator inside an Environment Query, the action triggers an ensure and stalls the Editor for a few moments. This issue was reported and tested in 4.19.2 (CL-4033788). It was r ...
Crash upon attempt to create destructible mesh of EditorSphere or EditorCube
UE - Simulation - Physics - Destruction - Oct 4, 2018When attempting to create a destructible mesh from the Engine content folder, using the EditorSphere, or EditorCube Mesh will cause the editor to crash. However, other meshes from this folder such ...
Setting Lightmap Coordinate Index Past 3 Causes Mesh to Get No Lightmap Information
UE - Graphics Features - Nov 20, 2018Meshes with their Lightmap Coordinate Index set to anything over 4 will not be lit by static or stationary lighting. Found in CL# 4.19 4033788, 4.20 CL# 4369336, 4.21 CL# 4541578, 4.22 CL# 4573698 ...
Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly
UE - Anim - Rigging - Retargeting - Feb 13, 2025Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted. Users have to refresh the properties that select the base pose in order to fix the ...
Adding a scene component to a child blueprint causes log warnings to appear in output log
UE - Gameplay - Blueprint - Sep 1, 2015If a scene component is added to a child blueprint and the parent blueprint is compiled, a log warning will appear that states: "LogBlueprint:Warning: USimpleConstructionScript::FixupRootNodeParen ...
Custom lighting channels ignored when object culled in stereoscopic
UE - Platform - XR - Apr 14, 2016When a light that uses lighting channels is only visible in one view during stereoscopic rendering, it affects the default light channel instead of the assigned one in the view that it's not visible ...