marquee selection in orthographic view selects all bsp brushes, even those not located within marquee selection.

UE - LD & Modeling - Modeling Tools - BSP - Jan 14, 2015

Marquee selection in an orthographic view selects all bsp brushes in level, even if they are not under the marquee selection. ...

Float value of AIDataProvider_QueryParams is cast faild

UE - AI - Oct 9, 2018

IntValue and BoolValue is always indefinite value in UAIDataProvider_QueryParams::BindData(). Attach the result of Watch in VS. ...

Vertex Painting - Unexpected behaviour when painting Skeletal Mesh with Low Radius Brush

Tools - Oct 21, 2019

Unexpected behaviour when painting skeletal meshes with small radius brush. This does not occur with static meshes. Confirmed in 4.25 MAIN @ CL 9730599 ...

Cull Distance Volumes don't work with WP

UE - World Creation - Worldbuilding Tools - World Partition - Jul 19, 2023

drag the progress bar in level sequence would crash in debug editor

UE - Anim - Sequencer - Aug 17, 2023

it seems in FSequencerTimeSliderController::ComputeFrameTimeFromMouse the CursorPos is -nan ...

p.NetShowCorrections debug capsules do not match character's orientation with custom gravity direction

UE - Gameplay - Player Movement - Jun 25, 2025

This looks to be because the debug drawing uses FQuat:Identity for the capsules, rather than the character's orientation. ...

Convert Mouse location to world Space appears to be returning the wrong values in VR

UE - Platform - XR - Jul 14, 2015

When using the node "ConvertMouseLocationToWorldSpace" in VR appears to be restricting the mouses position to a small section of the available screen. ...

Alembic Import with empty first frame will cause the editor to crash

UE - Gameplay - Aug 10, 2016

The editor will crash when importing an Alembic file with an empty first frame. ...

Particles can not be displayed once they disappear in ParticleLOD

UE - Niagara - Jul 22, 2019

I have attached a project to reproduce. [Link Removed] The problem is that if there are multiple emitters It seems to reproduce when all Emitter is Disable. It works well if there is one Enable. [ ...