LIVE: Memory spikes when importing a json with a large amount of sprites

UE - Gameplay - Paper2D - Oct 24, 2014

While importing a json file with a large amount of sprites, memory usage spikes. The test asset uses a 2000x128 texture with 1024 elements. ...

Low FPS in Kite Demo

Tools - Mar 9, 2017

When attempting to play the GDC_Landscape_01 map in Editor or as Standalone Game, game plays with very low FPS ~ 3-10 on machines that should be able to handle 30+. While testing for regression, ra ...

Mesh vanishes on BP compile (components created by components issue)

UE - Gameplay - Blueprint - Mar 29, 2017

When a mesh is declared in a custom component class and that component is added to an actor class, compiling a blueprint based on the actor class will cause the mesh set in the component to vanish i ...

Scroll bar jumps to the top of the window when changing Output Log 'Categories' checkboxes

Tools - Aug 8, 2017

When the Categories dropdown is changed in the Output Log, the scroll bar will jump to the top of the page. This does not match the behavior of using the search bar which will keep the scroll bar a ...

[CrashReport] UE4Editor_RHI!FClearValueBinding::GetClearColor() [rhi.h:989]

UE - Platform - XR - Mar 27, 2018

No user comments in crash group 986 FLinearColor GetClearColor() const 987 { 988 ***** ensure(ColorBinding == EClearBinding::EColorBound); 989 return FLinearColor(V ...

World Aligned Texture / Normal in Decals does not Operate as Expected

UE - Graphics Features - Jun 26, 2018

World Aligned Texture / Normal in Decals does not operate as expected, however when used as a surface material it will work just fine. Found in 4.19 CL# 4033788, 4.20 Preview 3 CL# 4154964, 4.21 CL ...

Crash when duplicating an asset before renaming it in the Content Browser

Tools - Sep 27, 2018

If you duplicate an asset in the Content Browser before the renaming box prompts input it will cause the Editor to crash. This was reported and tested in 4.20.3 (CL-4369336). This is reproducible ...

UCheatManager::ToggleDebugCamera() causes crash

UE - Gameplay - Oct 11, 2018

Toggling the Debug Camera with the UCheatManager::ToggleDebugCamera() function in a PlayerController derived class causes a crash. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL ...

Button input is ignored when toggling Input mode from UI to Game

UE - Gameplay - Input - Oct 31, 2018

IE_Released is called when switching between the Game and UI input modes, despite the button being still held. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4527422), 4.22 (C ...

Animation Modifiers that contain a null Animation Sequence value cause the Engine to crash when applied to an Animation Sequence

OLD - Anim - Nov 14, 2018

When an Animation Modifier passes a null Animation Sequence value to an Animation Sequence the Editor will crash. This is a regression from 4.20.3 (CL-4369336). This was reported and tested in 4.21 ...