Unreal Engine Issues
Unreal Engine Issues
Add Submix Effect Blueprint Does Not Have Any Effect
UE - Audio - Dec 11, 2020Adding a second effect to the Submix Effect Chain on a Submix works as expected, but when trying to add a Submix Effect via Blueprint, there is no effect. This also applies to "Add Master Submix Ef ...
A chaos vehicle that moves at very high speeds with CCD enabled on the vehicle sometimes has a collision response that is abnormal where the vehicle loses a significant amount of speed when colliding with dynamic objects configured as One Way Interaction
UE - Runtime - Character - Dec 16, 2025Context: Continuous Collision Detection (CCD) is being used on a Chaos Vehicle to avoid tunneling issues with certain surfaces as it prevents any missed collisions between fast moving particles and ...
Calling BodyInstance.UpdateBodyScale displays erratic behaviors and does not update the rendering scale
UE - Runtime - Simulation - Nov 22, 2024Calling BodyInstance.UpdateBodyScale displays erratic behaviors and does not update the rendering scale. The licensee has reported and presented a repro project that displays the erratic behavior of ...
[CrashReport] Crash after enabling the 'Composure' plugin
UE - Graphics Features - Jul 11, 2017This crash occurs in the 4.17 Preview 1 Binary editor after enabling the Composure plugin. User DescriptionsEnabled the Composure plugin (and restarted editor) in 4.17 Preview 1 ...
Sequencer custom render pass results are incorrect
zComponent - Archive - Feb 10, 2021As a result of outputting with Roughness set to 0.5 in the material, it is 0.5 in the viewport and a little lower in the render pass output. Viwport [Image Removed] Render [Image Removed] ...
Landscape GrassType does not have the option to exclude Decals
UE - World Creation - Worldbuilding Tools - Foliage - Feb 8, 2016Landscape grass type lacks the option to disable decals from affecting it. ...
UE-47779 - Crash exiting packaged PlatformerGame while in the Main Menu
UE - Gameplay - Jul 27, 2017This was occurring when I quit via the Quit button in the Main Menu GUI. I also repro'd this using the "Quit" command in the console. I found this on Linux, but this was repro'd on Mac and Windows ...
Packaged project crashes when playing sound from blueprint library with enum input after nativizing blueprints
UE - Gameplay - Blueprint Runtime - Aug 23, 2016Packaged project crashes when playing sound from blueprint library with enum input after nativizing blueprints. Frequency: 5/5 Notes If nativize blueprints is turned off, the packaged project wor ...
Unexpected offset when using attach tracks with scene root components
UE - ACT Character - Sequencer - Sep 15, 2026We noticed an inconsistency when using attach tracks, depending on whether or not the parent actor has a default scene root. This creates an unintuitive behaviour for animators. It can be reproduce ...
Data Validation Is Not Detecting References Correctly in Third Person Template When Assets Are Migrated
UE - Editor - May 12, 2022Occurs 5/5 times Data Validation is not detecting soft references correctly in the TPS template. Regression does occur as tested in //UE4/Release-4.27 @ CL 1831986 EGL Live. ...