Unreal Engine Issues
Unreal Engine Issues
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
[CrashReport] UE4Editor_DetailCustomizations!`FBrushDetails::CustomizeDetails'::`2'::Local::OnClassPicked() [brushdetails.cpp:172]
Tools - Aug 29, 2017This is a common crash that has occurred since at least 4.15 and affected more than 100 users. The callstack shares some similarities to [Link Removed], which was not resolved. User DescriptionsGo ...
Performance problems (freeze) in SCS tree view with a significantly large number of components
UE - Gameplay - Components - Mar 9, 2018User reports an unreasonably long editor freeze when a significantly large number of components need to be processed in the SCS editor tree view (tens of thousands) when selecting an instance of a B ...
Exposure Compensation in PP Has No Effect in Mobile LDR Mode
UE - Platform - Mobile - Jul 2, 2018Tested in 4.19, 4.20 Preview, and 4.21 Main. Per User: Lack of the ability to tune-up the Exposure Compensation makes the scene lighting look visually incorrect, especially in fully baked environ ...
Getting Fullscreen or Windowed Resolutions doesn't fully execute on Linux
UE - Rendering - Architecture - RHI - Oct 28, 2019When using "Get Supported Fullscreen Resolutions" on UE when built with Vulkan, no values are printed out. This is an issue with any platform that builds UE with -vulkan, not just Linux. In Engine ...
Using Snap Rotation displays the Rotation wrong (or calculates the Rotation wrong and losses precision) when the Y rotation axis is 90 degrees
UE - LD & Modeling - Modeling Tools - BSP - Nov 7, 2019Although the Details Panel shows the degrees wrong, the object seems to have done it's rotation correctly but not in the right degrees. It will rotate to the position specified but it goes the wrong ...
Crash when using Property Access node on Animation Blueprint (repro based on Lyra Starter Game animation layers)
UE - Anim - Runtime - Jan 24, 2024When using the Property Access node on Animation Blueprints to gain performance by better exploring parallel processing, it is possible that the underlying accessed property or any intermediate acce ...
Switching modular control rig to FK mode breaks pose of controls that have been baked to rig
UE - Anim - Rigging - Control Rig - Sep 14, 2025From the licensee:We have built a modular Control Rig in Unreal 5.6, and while IK to FK matching works correctly inthe rig, but we are facing an issue when applying mocap animation to the characters ...
Crash loading sublevel that had name changed when it is unloaded.
Tools - Apr 2, 2019Updated name of sublevel leads to crash when it is about to be loaded. ...
Asset Override Editor does not have vertical scrollbar until window is resized
OLD - Anim - Oct 22, 2015If a child anim blueprint has enough animations to go beyond the view of the asset override editor, the override editor will not show a vertical scrollbar until the window is resized. ...