ChildActorComponent (SkeletalMesh) goes into tpose when calling SetChildActorClass

OLD - Anim - Mar 19, 2018

There is an issue occurring where when updating an animation of a child actor by setting the Child actor class, the animation will flash the skeleton in a T-Pose before continuing with the animation ...

Custom Collision Preset Settings Not Saving on Foliage

UE - World Creation - Worldbuilding Tools - Foliage - Jun 25, 2018

Custom collision presets will not be saved properly to foliage after closing and reopening the project. Additionally if you make changes to any collision preset in project settings, the foliage will ...

Cameras rotate incorrectly in Sequencer when using Key All and Auto-Key options

UE - Anim - Sequencer - Dec 14, 2018

Sequencer is having issues handling a camera rotation going past -180 or 180 degrees with multiple keyframes when Key All and Auto-Key options are enabled. This results in unwanted 180 degree flip w ...

Malformed command sent to UAT if BuildCookRun command ends with a trailing slash ("\")

UE - Foundation - Cpp Tools - Feb 14, 2019

Including a trailing slash ("\") at the end of a BuildCookRun command sent to UAT results in UAT receiving a malformed command. If the command ends with a slash, the resulting command that UAT recei ...

gltf 2.0 Blender Polly Import crashes

OLD - Enterprise - Aug 29, 2019

Trying to import the Polly sample model for gltf 2.0 crashes Editor. User know that the Plugin is experimental but as the Polly Model is used for Blender gltf development, it should work. The crash ...

Spherecast against complex geometry is returning odd results

UE - Simulation - Physics - Sep 19, 2023

Turning on batching of sphere casts when colliding against complex gives incorrect results. Affects debug output and vehicle wheels and body movement. The issue is with the batch query mode which ...

Clear Coat looks incorrect in the Preview when Energy Conservation on Material is enabled for non Substrate rendering

UE - Rendering Architecture - Materials - Apr 11, 2024

Enabling Energy Conservation on Material makes Clear Coat Material look weird in Preview. It looks fine in the Level Editor, but not in any "Preview" type viewport (Material Editor, Asset Thumbnails ...

UAT crashing at end of build calling FScopedSceneLock_Chaos::LockScene()

UE - Simulation - Physics - Editor - Nov 7, 2024

UAT has intermittent crashes at the end of  packaging. Looks related to  [Link Removed] . Could be that the solver is being destructed after the null check earlier in the function if this is multit ...

Child actors cannot be recognized as children of parent actor within parent blueprint

UE - Gameplay - Blueprint - Jul 16, 2015

Parent blueprints do not recognize child class actors as the same type as the initial parent blueprint. This makes it difficult to create a master blueprint for spawning/ai control/etc. ...

Material stats incorrectly flag 17/16 samplers even if GL4 allows 32

UE - Rendering Architecture - RHI - Jul 15, 2015

From AnswerHub: Utilising 128 textures in a material does not work in Linux, its still limited to 16 (actual 12) on OpenGL platforms, I looked at the commit that implemented it and I don't see anyth ...