Unreal Engine Issues
Unreal Engine Issues
The speed of Animators is increased in exports
TM - Tools - Jun 23, 2026Reported in SF [Link Removed] When setting Animator tools to use Collision mode for video, the loop speed of the animator will be twice as fast as specified in the video export. Attached a sample ...
Torque curve makes no difference on vehicle movement
UE - Gameplay - Blueprint - Sep 11, 2015When changing the Torque Curve in a Wheeled Vehicle's Vehicle Movement Component, the values set don't affect the torque of the vehicle. ...
Skeletal mesh always registers as Dynamic when testing collision
UE - Gameplay - Oct 26, 2016Skeletal meshes do not respect collision changes from World Dynamic, always returns as Dynamic. Regression (no) issue (does) occur in 4.12.5 ...
[Reverb Effect] - Deactivate Reverb Effect Blueprint Doesn't Deactivate Reverb
UE - Audio - Aug 11, 2021When deactivating a reverb, it's removed from the Activated List, but doesn't get removed from being the active reverb. Confirmed occurs in 4.27 and 5.0 ...
Certain dropdowns in the Menu Bar are missing sections on Mac when expanded
UE - Platform - Apple - Apr 25, 2017This only affects certain dropdowns and only occurs when the editor is open. Also occurs in 4.15.2 This has been seen on the following macs:AMD R9 M395 iMac running Sierra 10.12.5 ...
Mouse Wheel Axis input gives different values in HTML5 packages, varying by browser
UE - Platform - Mobile - Sep 28, 2017The value given by the Mouse Wheel Axis is usually 1.0 or -1.0, depending on the direction. In HTML5 packages, this value varies based off the browser that is used. On Firefox (56.0): 0.025 or -0.0 ...
BlackmagicMediaSource causes a memory leak if "Just-In-Time Rendering" option is ON.
zComponent - Archive - Oct 31, 2023Since 5.3, BlackmagicMediaSource causes a memory leak. This didn't happen on 5.2. You can see the leak on PIE. [Image Removed] [Image Removed] If "Just-In-Time Rendering" option in the MediaB ...
Odd Refraction on Close Planes
UE - Rendering - Architecture - Jun 7, 2023We're seeing odd refraction when we have two close planes where the front plane has a translucent shader with a refraction not equal to one. I've included a project with the following setup:Two equa ...
Editor Periodically Has Performance Drops In Basic Scenes
Tools - Dec 27, 2019The Editor experiences performance drops even in the default basic level when left alone running. I experienced them every ~3 seconds. My graph didn't show the drops very clearly so the fps counter ...
[MetaSounds] - Inputs, Outputs, and Variables are not allowing spaces in the member name
UE - Audio - MetaSounds - Oct 27, 2022UE does not allow to have spacing for array in MetaSound PatchThis occurs in MetaSound Source as well Regression checked and occurs on //UE5/Release-5.1 @ CL 22805038 - P4V Repro Rate : 4/4 ...