Physics Substepping doesn't have the same effect from 4.15 to 4.16

OLD - Anim - Aug 8, 2017

Physics Substepping doesn't have the same effect from 4.15 to 4.16. In 4.16+ the ponytail in the provided project will have a jitter effect even with substepping enabled. This is a regression: Work ...

High GPU Memory Consumption when Moving an actor that contains a SceneCapture2D

UE - Graphics Features - Mar 29, 2017

When using a SceneCapture2D within blueprints (as a component or actor blueprint) and moving the blueprint around while placed in the world (Capture Every Frame and Capture on Move enabled). The mem ...

Actors in always loaded sublevels are not immediately recorded into replays

UE - Networking - May 24, 2024

In FReplayHelper::ReplicateActor, we check Connection->ClientHasInitializedLevel(Actor->GetLevel()) to see if the actor should create a channel or not. However, the DemoNetConnection does not have a ...

Material Usage Flags not triggering Source Control

UE - Rendering Architecture - Materials - Jun 24, 2015

Usage Flags are not correctly marking Materials as dirty when automatically setting and with using a Source Control method. Compact Repro Steps from User: "To reproduce: Create a entrance level th ...

Landscapes Do Not Recognize Material Layers if Blend Assets Are Added in Material Instance

UE - Graphics Features - May 24, 2018

*Developer's Note*  - Material layers are not landscape layers and are not expected to interact. Not sure if this is a bug, but depending on how a layered material is created, its layers may not ...

Levels can get stuck in the 'loading' state when using Incremental GC

UE - World Creation - Worldbuilding Tools - Jul 31, 2024

From licensee:"Testing incremental GC on our project we have ran into an issue with level streaming where levels will get stuck in the 'loading' state in packaged builds. The issue appears to be due ...

Cached State Machine is re-initialized whenever cached pose is referenced

OLD - Anim - May 19, 2015

This may not be an expected use of state machines, but it is becoming a showstopper for a couple of users. These user's are caching their locomotion state machine and then using a second state mach ...

TAttributeContainer::CopyFrom crashes when container contains invalid bone indices for active mesh

UE - Anim - Runtime - Jun 16, 2024

Currently there's no validation within the animation attribute container that bone ids are valid.  This means that client/game code can add attributes with invalid bone ids into the container and th ...

Disabling the Paper 2D plugin causes a packaged project to not open

UE - Foundation - Cpp Tools - Automation Tool - Jun 19, 2017

When working in a project that is in 4.16, disabling the Paper2D plugin causes a packaged version of the project to not open. This issue is different from previous versions as disabling the plugin i ...

meshes from 3ds Max which have custom pivots do not reappear in the level after undoing a delete action

UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 29, 2018

There is an issue occurring where meshes from 3ds Max which have custom pivots from a datasmith import do not reappear in the level after deleting them and then undoing the delete action. The mesh d ...