UPL addElement and addElements can infinitely recurse if tag is included in inserted data

UE - Platform - Mobile - Jul 24, 2017

Inserting element data which contains the same tag as to insert into can create an infinite loop of adding the element to itself. ...

Face locked stereo layer becomes offset when using "Set Orientation and Position"

UE - Platform - XR - Sep 11, 2017

Face locked stereo layer becomes offset when using "Set Orientation and Position". When "Set Orientation and Position" is called the stereo layer becomes offset by the amount provided in the yaw (If ...

[Feature Request] Dialogue appears behind screen space widgets

UE - Editor - UI Systems - Oct 23, 2017

Dialogue text appears behind screen space widgets ...

[CrashReport] UE4Editor_Engine!FStaticMeshVertexBuffer::BindLightMapVertexBuffer() [staticmeshvertexbuffer.cpp:495]

UE - Graphics Features - Mar 20, 2018

User comment from crash group:reimporting fbx 491 void FStaticMeshVertexBuffer::BindLightMapVertexBuffer(const FVertexFactory* VertexFactory, FStaticMeshDataType& Data, int LightMapCoordinate ...

Template_Default.umap and Template_Default_BuiltData.uasset will be changed each time after cook.

UE - Foundation - Core - Cooker - May 10, 2018

Each time after cook the Template_Default.umap or Template_Default_BuiltData.uasset are changed. But if I move Template_Default.umap to the project content folder, they will be the same as the las ...

Python cannot spawn object when running in Ueditor-CMD

UE - Editor - Workflow Systems - Dec 7, 2018

It is probably link to the fact the function try to access so GUI object that are not accessible in CMD EditorLevelLibrary.spawn_actor_from_object should work in commandlet ...

Beam Emitter exhibiting lagging behavior when attached to Camera in BP

UE - Gameplay - Sep 26, 2014

Beam Emitter attached to a camera in a blueprint is showing lagging behavior at source and target locations ADDITIONAL NOTES: Have tried to eliminate the lagging through locking source and target w ...

FP_FirstPerson and FP_FirstPersonBP missing when adding feature packs

Docs - Samples - Dec 16, 2019

When adding the first person template (bp or code) as a feature pack, an error occurs stating "Unable to read file" and a warning "failed to import".  ...

Map Get Node Pins In Niagara Module Scripts Can't Search For Standard Data Types

UE - Niagara - Mar 16, 2020

This wasn't like this in 4.24 (see attached images). If you create a variable Engine.Owner.Position the search will find it however. Found in 4.25 Preview 2. Reproduced in 4.26 Main. ...

Launching a specific UDN Project with Vulkan Support enabled crashes launching on Quest

UE - Platform - XR - Jul 30, 2020

When attempting to run the attached Project submitted from UDN, it will crash on launch. If Vulkan support is disabled, the Project will run as expected on Quest. This issue DOES NOT appear to repro ...