Scrollbox under multiple retainerboxes doesn’t scroll correctly with PIE

UE - Editor - UI Systems - Aug 14, 2019

When the scrollbox as the child of multiple retainerboxes, the scroll isn't smoothing. It can see issue with PIE only. If it run with standalone (or package build) is fine. In SScrollBar::ExecuteO ...

Virtual Texturing: RuntimeVirtualTextureOutput Node Can Be Used with a Virtual Texture Domain Material

UE - Graphics Features - Jun 21, 2019

When adding a RuntimeVirtualTextureOutput node to a Virtual Texture domain material, the RVT Output node overwrites any data being sent to the normal material node's output, which interferes with th ...

Vehicle tire forces applied too high

UE - Simulation - Physics - Jul 22, 2022

Vehicle wheel friction values are applied too high relative to the vehicle centre of mass.  They are applied at the wheels original rest position rather than the base of the current wheel location. ...

Streaming Virtual Texture UDIN V Offsetting

UE - Editor - Content Pipeline - Import and Export - Jan 31, 2024

UDIN virtual textures appear to have row 0 (U coordinate [0 - 1) swapped to the other side of the texture vertically. ...

Substrate- black outline appears when using sharp contrast mask to blend slabs

UE - Graphics Features - Oct 4, 2024

Substrate materials have a thin border of black pixels between slabs. These lines can be made more apparent by changing the Diffuse Albedo color of the two slabs to pure white. This will remove the ...

[StateTree] Reentering current state immediately after exiting does not reset variables on tasks with "Should State Change on Reselect"

UE - AI - StateTree - Nov 7, 2024

Context State Tree Tasks have a configurable default value 'Should State Change on Reselect' which controls whether the task receives a EnterState/ExitState if completion of the current state is fo ...

After compile, spawnable actor is stuck in spawned state

UE - Anim - Sequencer - Jun 3, 2016

After compile, spawnable actor is stuck in spawned state ...

Mouse offset when switching resolution between windowed mode / fullscreen

UE - Editor - UI Systems - Aug 13, 2015

When switching between windowed and fullscreen modes during runtime the mouse position is reported incorrectly. Eg. A button with a hover over effect will play the effect when the mouse is near but ...

Moving objects in editor does not update collision

UE - Gameplay - Apr 7, 2015

When an object is created procedurally with code and placed into the editor the collision analyzer will detect the object properly. If the object is then moved to another part of the level the coll ...

collision components added to vehicles do not properly register overlap events

UE - Gameplay - Sep 16, 2015

overlap events do not fire when collision components such as sphere or capsule collision components are added to a vehicle blueprint. Overlap events seem to register if the component overlaps with o ...