Anim Dynamic state does not reset when closing sequencer

UE - Anim - Sequencer - Apr 1, 2019

When using Anim dynamics in an animation. The actors affect stop in their current state once the sequence controlling the anim dynamics is closed. They do not appear to reset to their default state ...

Packaged Paper2D game using Flipbooks crashes when opening Level

UE - Gameplay - Components - Sep 11, 2020

Paper2D game using Blueprint Actor with Box Collision and Flipbook Component crashes frequently when loading levels in packaged Development Build. Reported and tested in versions 4.25.3(CL 139427 ...

Line trace fails to detect Destructible Mesh

UE - Simulation - Physics - Destruction - Jun 15, 2015

When using a line trace in the construction script so that objects can return a value destructible meshes will not return a hit. This does not affect use in game with PIE or Standalone game, but if ...

Changing transform of simulated component during physics freezes motion

UE - Simulation - Physics - Oct 13, 2016

If something is executed before a SetActorRotation node on Tick inside of a SceneComponent class BP and then added to an Actor class BP, the physics will lag User Description: When using set rotat ...

Crash when Rendering a Sequence at resolutions higher than 4K with DX12 and Ray Tracing Enabled

UE - Rendering Architecture - RHI - Jul 2, 2019

The Editor will crash when rendering a sequence at 7680x7680 with dx12 and ray tracing enabled. Found in 4.22 CL# 7053642, 4.23 CL# 7208101, 4.24 CL# 7210422 ...

Construction script does not properly reset array count

UE - Gameplay - Oct 28, 2019

It appears that in UE 4.23, some specific arrays in construction scripts are no longer cleared automatically and retain references to TRASH objects from the previous construction script calls. This ...

Cannot resize comment box when new comment is created on top

UE - Rendering Architecture - Materials - Apr 27, 2017

Cannot resize comment box when a new comment is created on top. The resizing affects the bottom right corner. This issue is dependent on how the comment is added if comment 1 is highlighted and a ne ...

"On List Selection Changed" Retrieves The Wrong Item When "Set Item Selection" is used.

UE - Editor - UI Systems - Jan 8, 2020

When a list view item in UMG is selected using "Set Item Selection" it will get the item of the first entry in the list or the last entry manually selected by the user. The correct item display nam ...

D3D Device Lost 'HUNG' crash in FD3D11Viewport::PresentChecked

UE - Graphics Features - Oct 31, 2016

This is a new D3D crash affecting multiple users in 4.14 Preview 1. It is currently the #1 crash in the Preview. Information provided by users:Just pressed create project...Openning QA Game with - ...

TimeSynth when reactivated doesn't continue playback from where it was deactivated

UE - Audio - Dec 9, 2019

This issue only occurs with -audiomixer passed into the Engine (4.23) and in 4.24/4.25 where it is enabled by default. The user tried deactivating and reactivating Time Synth component to pause it ...