Unreal Engine Issues

Path Tracing shadow artifacts

First picture lit is used [Image Removed] Second picture PT is used, this occurs under certain angles of incidence. [Image Removed] ...

Crash with SceneCapture DepthPrepassOptimization enabled

GetActorsPerception useless in 4.7

The new AI Perception system's BP API, marketed in release notes, depends on UAIPerceptionComponent::GetActorsPerception, that, as one AnswerHub user points out, is useless due to a buggy condition ...

TimeRemaining doesn't work when animation has a negative play rate

TimeRemaining doesn't work when animation has a negative play rate ...

Specular Isn't Affected for Materials Set to the Eye Shader If r.IrisNormal is Enabled

Specular Doesn't Affect a Material with the Eye Shader If r.IrisNormal is enabled. Found in 4.22 CL# 7053642, 4.23 CL# 8115738, 4.24 CL# 8302014 ...

Jittering appears when setting DOF in ES3.1

For reference, it was fine in 4.24 In particular, jittering is severe when the camera is moving. GaussianHalfRes has been removed in CL 14036168, which is likely to cause degradation issues if int ...

Crash on mobile OpenGL with a retainer box

GAS: OnTagUpdated() not called when calling SetLooseGameplayTagCount()

Context AbilitySystemComponent has a virtual function virtual void OnTagUpdated(const FGameplayTag& Tag, bool TagExists); that gets called when a gameplay tag gets added or removed, so whenever ...

Multi-Material Skeletal Meshes assigned a Material in Details panel lose access to all other materials

When you assign a Material to a Multi-Material Skeletal Mesh via the Mesh's Level Viewport Details Panel, you will lose access to all the other material Elements after the first assignment. For ins ...

Moving an actor between levels causes properties marked DuplicateTransient to reset to default

Currently, properties marked DuplicateTransient will be reset to default when their actor is moved to a different level. This happens because we use the clipboard to virtually cut the actor out of o ...