Datasmith Import flipped for Autocad 2020 files

UE - Editor - Content Pipeline - Datasmith - Importer - Aug 29, 2019

Some of the items has scaling issues and there are quite a few that have moved from their origin point as well, but the biggest problem is that the whole model is mirrored. even the text. This was ...

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float"

UE - Gameplay - Sep 13, 2019

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float". Found in 4.22.3 CL#7053642 Reproduced in 4.23.0 CL#8386587, 4.24.0 Main CL#8671808 ...

Normals Not Imported If Mesh Has A Morpher

UE - Editor - Content Pipeline - Import and Export - Sep 19, 2019

If a mesh has 'Morpher' modifier on it (even disabled) normals won't be imported, the same meshes imported normals correctly once the morpher component is deleted. Found in 4.22 CL# 7053642, 4.23 C ...

Sequence Recorder under "Choose Properties to Be Recorded" shows only "Actor Hidden In Game"

UE - Anim - Sequencer - Oct 1, 2019

Sequence Recorder under "Choose Properties to Be Recorded" shows only "Actor Hidden In Game" and no other properties. This was reported and tested in 4.22.3 (CL-7053642). This was reproduced in 4. ...

Adding a camera cut track through sequencer scripting does not set the movie scene's camera cut track

UE - Anim - Sequencer - Mar 13, 2020

When adding a camera cut track through sequencer scripting there is no way to set the camera cut track on the movie scene, which is how the add track menu determines if a new one can be added. This ...

Blueprint Function Library variables can be promoted out of scope

UE - Gameplay - Blueprint - Oct 5, 2020

Input parameters can be promoted to variables from the context menu when dropped on an empty graph. Per [Link Removed] this is not expected and dangerous for users to use. This is reproducible as f ...

BlackboardComponent observer can be called for the wrong key

UE - AI - BehaviorTree - Feb 7, 2023

We need to, at least, prevent this by clearing observers when running a new BT using a different blackboard. Must also think that this might affect licensees relying on the current behavior (might h ...

TranslucentVolumeAmbient is darkened in InjectTranslucencyLightingVolume pass when using VSMs with r.Shadow.Virtual.ForceOnlyVirtualShadowMaps is Off

UE - Graphics Features - Shadows - Nov 18, 2024

CSM targets are still created and affect the InjectTranslucencyLightingVolume pass when moving in a project that only uses VSM causing over brightening of fog planes and other translucent meshes. r ...

Compiling any material in UE 5.5.1 without ShaderCompiler JobCache results in a crash

UE - Rendering Architecture - Shaders - Jan 15, 2025

Compiling any material with r.ShaderCompiler.JobCache=0 causes ShaderCompileWorker to crash. Reproduction steps cause a crash during Editor startup, but this bug may affect other scenarios where mat ...

Popping Ribbon UVs

UE - Niagara - Mar 10, 2025

Please see the Additional Link for related UDN information. The UV popping described can be subtle, depending on settings; it's affected by spawn rate and GPU vs CPU. The popping shown in the gif t ...