CharacterMovementComponent causes the Character to slide when jumping on moving objects

UE - Gameplay - Player Movement - Sep 21, 2018

When the CharacterMovementComponent makes the transition from falling to walking, it retains the forward velocity it had while falling. When the character lands on the moving object, its new velocit ...

Crash in Skeletal Editor due to null ActorFactory reference

OLD - Anim - Feb 1, 2017

When a material is dragged/dropped into a skeletal editor's bone hierarchy, the editor will crash due to null ActorFactory Regression: Yes - Crash does not occur in 4.13.2 binary (CL 3172292) ...

Engine crash when Scene Capture Component 2D is added to viewport with forward rendering

UE - Graphics Features - Nov 26, 2016

If forward shading is enabled and shadows are disabled, adding an actor with a SceneCaptureComponent2D and static mesh to the viewport will cause the editor to crash. Regression: Yes - this crash o ...

DDC corruption creates incorrect pasted topology when using Landscape Copy / Paste Tool

UE - LD & Modeling - Terrain - Landscape - Apr 3, 2017

I noticed that the copy and pasted section of the level was being painted while I was painting a nearby section of the level. This weird yellow color appeared and I undid and redid the paint to make ...

LIVE: EDITOR: CRASH: Editor crashes on iPad4 when attempting to draw a texture that is 2048x1536

UE - Platform - Mobile - Oct 14, 2014

Build: 4.5.0-2316912 Description: .exe crashes on iPad4 when attempting to draw a 2048x1536 texture to the HUD Frequency: 2/2 Repro: [Reproduced Internally] 1. Download attached texture file. 2. Ope ...

Using the BuildGraph to create an installed binary build of the Engine will fail if Simplygon is not installed.

UE - Foundation - Horde - BuildGraph - Oct 13, 2016

A user reported that attempting to create an installed binary build of the Engine using BuildGraph will fail. This seems to be because we include the UE Simplygon implementation, but do not disable ...

AssetRegistry.bin is not deterministically cooked.

UE - Foundation - Data Pipeline - Cooker - Mar 8, 2022

AssetRegistry.bin is not deterministically cooked. NativeLibraries is turned off because .ushaderbytecode has a non-deterministic issue in [Link Removed]. And there is a similar issue with UE5 in [ ...

ObjectPivotPoint does not work with instanced Nanite meshes

UE - Rendering Architecture - Materials - Nov 17, 2022

Regression: Nanite Foliage is a new feature in 5.1, so this issue is not reproduceable in 5.0. Notes about this new support can be found under Nanite Improvements in https://docs.unrealengine.com/5. ...

The Select node will accept both a Parent Class and a Child Class as inputs if the Parent is added first

UE - Gameplay - Blueprint - Sep 2, 2015

The Select node will accept both a Parent Class and a Child Class as inputs if the Parent is added first. The node will compile if the Index is set to anything other than Wildcard. Note that the no ...

Netprofile crashes networked games using Steam

UE - Networking - Jan 5, 2016

Netprofile crashes networked games using Steam with the following assertion: Assertion failed: "Invalid interface for Steam P2P addresses" && 0 [Link Removed] [Line: 72] No Crash Report is submitt ...