Unreal Engine Issues
Unreal Engine Issues
[Sound Cue][Open World] - Crash when creating a Sound cue from an Ambient Sound actor on an Open World map
UE - Engine Scaling - Streaming - OFPA - Apr 18, 2022When trying to recreate an issue that resulted in [Link Removed] Closed , I came across this call stack. Regression testi ...
WrapBox->ForceNewLine() does not keep the slot on a new line.
UE - AI Workflows - UI Systems - Slate - Apr 18, 2022Repro Ratio: 4/4 Regression testing done in //UE5/Release-5.0-EarlyAccess CL-16682836 as this is a new feature to UE5. This issue Also happened in Early Access 2. ...
Palette panel favorites category no longer stores more than 1 favorite at a time
UE - AI Workflows - UI Systems - UMG - May 10, 2022This is a regression from 4.27.2 CL18319896 The favorites category within the User Widget's palette no longer stores more than 1 favorite at a time. Each time a new favorite is starred it replaces ...
LiDAR asset is distorted when reopening the level after closing it.
zComponent - Archive - Feb 15, 2023Found an issue with the asset in the steps to reproduce in //UE5/Release-5.2 CL 24238206 Perforce. When closing and reopening the project the asset in the viewer shows up as distorted. The issue occ ...
Widget that is a derived from a child widget reports component variables as Invalid
UE - AI Workflows - UI Systems - Aug 23, 2023This is not a regression. Tested in //UE5/Release-5.2 CL26001984 A widget that is a derived from a child widget reports component variables as Invalid, while the child and parent of that child will ...
[AI] Area Class to Replace does not work on SplineNavModifierComponent
UE - Runtime - Character - Jun 16, 2025The SplineNavModifierComponent does not have the same behavior as regular nav modifier components where the modifier can specify that it only replaces a given NavArea class. Setting the area class t ...
Chaos Cloth - Multiple issues with convex colliders
UE - Runtime - Deformable - Feb 6, 2026Issue 1: Convex Collision Transformation Missing for External Collision Sources Issue 2: Convex CCD Stability Issues due to Plane Intersection Semantics See attached URL for more details. ...
Scene with texture collection crashes when dumping a full memreport
UE - Rendering - RHI - May 28, 2025A licensee has reported that generating a full memreport of a packaged project which uses a texture collection leads to a crash. ...
Division by zero causing NaN/Inf on USkeletalMeshComponent::UpdateRigidBodyScaling() when setting scale to zero and back
UE - Runtime - Simulation - Feb 11, 2026Up to UE 5.5, skeletal mesh physics did not get updated when the component's scale changed. This was improved on January 2025 with CL 39190335, which addressed [Link Removed] ...
Adding an Event Dispatcher to a Template Character Blueprint Causes Increase in Compile Time
UE - Gameplay - Blueprint - Jul 8, 2016Adding an event dispatcher to one of the pre-created character blueprints in the template projects causes an increase in compile times. This does not occur with a blank actor or character blueprint ...