Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_UnrealEd!SaveWorld() [filehelpers.cpp:359]
Tools - Aug 31, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: !bIsReentrant [L ...
Hidden In Game option for Layers in TileMap Editor not working
UE - Gameplay - Paper2D - Oct 26, 2015Using the 'Hidden in Game' option in the Tilemap Editor does not hide the associated layers in game as expected. I tested this issue in 4.8.3, 4.9.2, and 4.10 Preview 2 binary releases and the issu ...
Exposure Metering Mode "Auto Exposure Basic" Disables Histogram Min/Max Control
UE - Graphics Features - Oct 11, 2018Auto Exposure Basic disables histogram min/max controls. Working as expected in 4.19 CL# 4033788 and 4.20 CL# 4369336 Found in 4.21 Preview 1 CL# 4435822 and 4.22 CL# 4448303 This is a regression ...
Tessellation no longer working
UE - Graphics Features - Jan 12, 2016Material Tessellation is no longer working in 4.11 Preview 2, 3, or 4. It is also no currently working in 4.12 Main. Working: 4.10.2 - CL-2818068 Not Working: Tested in Dev-Release CL-2824708 Not ...
Need to focus in Sequencer window for arrow hotkeys to work each time when scrubbing the timeline
UE - Anim - Sequencer - Mar 26, 2019The Sequencer timeline can't be scrubbed with the arrow keys because the Sequencer Window loses focus after an arrow key is pressed. This is a regression from 4.21.2 (CL-4753647) where repeated arro ...
Root motion "loop" not available to select in Blend Space
UE - Anim - Runtime - Apr 6, 2022When creating a blend space within UE5, root motion options are greyed out and can NOT be selected, no matter if the animation has EnableRootMotion checked or not. I also made sure to try an animat ...
Niagara Crash After Adding More Than 20 Emitters to a System
UE - Niagara - May 24, 2019The Editor will crash after adding more than 20 Emitters to a system. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6599617 ...
Missing binding object for component track in level sequence
UE - Anim - Sequencer - Mar 13, 2025This issue occurs when clicking on the Rebind Possesable References action in a Level Sequence editor. The component reference appears missing and won't work anymore. It is worth noting that when ...
Light Banding for Point Lights at long distances from the World Origin
UE - Graphics Features - Jan 4, 2017When using a point light far from the world origin the light will have banding. The shadow bias and filter sharpen can help but they are not as consistent as settings near the world origin. The only ...
[Mac][Metal] Black/NaN spots Visible in Templates With r.BasePassOutputsVelocity
UE - Platform - Apple - Apr 15, 2016Base-pass rendering on Mac Metal now generates transient black/Nan spots across the scene - this appears to be related to r.BasePassOutputsVelocity and is presumably the connected to the incorrect s ...