Unreal Engine Issues
Unreal Engine Issues
Struct with a single unaltered element will remove the element from the struct on compile
UE - Gameplay - Blueprint - Oct 7, 2015If used inside a UMG Blueprint, a struct that has only one element will remove the element from the struct after compiling the blueprint. If the element is edited or a second element is added then ...
Physics Asset ignoring Root Bone Rotation collision in Skeletal Mesh.
UE - Simulation - Physics - Dec 20, 2018**Physics collision ignores Capsule Collision, When Skeletal mesh root bone orientation is rotated in the Z-Axis, resulting in unexpected collision behavior. Screen shot has been attached to de ...
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 ...
Crash opening Infiltrator packaged on Windows for Linux
UE - Platform - Linux - Jan 18, 2017This occurred on packages that were created on different Windows machines. This crash is not occurring on other platforms during our Samples Pass. ...
A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work.
UE - Runtime - Simulation - Nov 22, 2024A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work. The licensee noticed that IPhysicsProxyBase* ...
In Packaged builds, Chaos Cache Manager can't animate Geometry Collections with Nanite Enabled if Cache Mode is set to Static Pose
UE - Runtime - Deformable - Feb 27, 2025In Packaged builds, Chaos Cache Manager (CCM) can't animate Geometry Collections (GC) with Nanite Enabled if Cache Mode is set to Static Pose. The licensee tried to animate a CCM using Sequencer onl ...
New VR-Basic level triggers Metal validation layer assertion
UE - Platform - Apple - Mar 16, 2020This was discovered externally and reported on UDN here: https://udn.unrealengine.com/questions/563268/mac-editor-crash-when-disable-ambient-occlusion.html ...
The ChaosCacheManager changes the bSimulatePhysics flag from the ObservedComponents and, if deleted, the change will persist, what can lead to confusion as observed physical entities will inadvertently stop simulating physics
UE - Runtime - Simulation - Nov 26, 2024The ChaosCacheManager (CCM) changes the bSimulatePhysics flag from the ObservedComponents and, if deleted, the change will persist, what can lead to confusion as observed physical entities will inad ...
"Invalid resource entry creating uniform buffer" when running Vulkan on Mobile
UE - Platform - Mobile - Apr 30, 2019Android projects in 4.22.1 crash on launch with Vulkan enabled. Did NOT reproduce in 4.23 MAIN at CL 6156332 4.22.1 release CL is the same as a related fix for this ( [Link Removed] ) ...
Alembic Importer does not import the correct amount of curves when using the Minimum Number Of Vertex Influence Percentage setting
UE - Gameplay - Jan 3, 2017This is a regression from 4.14.2 ...