App crashes when Launching on or launching packaged project on tvOS or iOS

UE - Platform - Mobile - Aug 1, 2016

Launch on to tvOS crashes the app on the device and returns the user to the main screen. This also affects packaged projects Update Project packaged in shipping configuration launched successfully ...

Nodes to the right of an Abort Both node in a Behavior Tree appears to still receive a tick

UE - AI - BehaviorTree - Feb 6, 2023

This is a regression. Tested in //UE5/Release-5.0 CL20979098 Behavior Tree appears to tick nodes to the right of an aborted node that is set to abort Both. Those nodes are not executed, but visuall ...

Engine freezes when Level Sequence format is in seconds

zComponent - Archive - May 22, 2023

When using the jumpbox with a sequence that is in seconds (not fps) the engine will freeze. This issue is occurring in Binary //UE5/Release-5.2 @ CL 25360045 This issue is occurring in Binary //UE ...

Sequencer Curves View: Fourier Transform Curve Filter stopped working?

UE - Anim - Anim in Engine - Sep 20, 2023

The Fourier Transform Curve Filter seems to have broke in 5.3+ [Image Removed] ...

Meshes often render or flicker black in one eye on OSVR

UE - Platform - XR - May 6, 2016

Found on: //UE4/Dev-VR CL-2967563 Often, meshes will render completely black in one eye on the OSVR. This seems to affect close meshes more frequently than far away ones. Sometimes the meshes flick ...

Crash occurs when a Const Vector 4 and a Screen Position node are passed into a LERP then connected to the Result Node

UE - Rendering - Architecture - Materials - Oct 13, 2022

Tested in: //UE5/Release-5.1 CL22346211 Crashed with Assertion //UE5/Release-5.0 CL20979098 Crashed with Assertion Crash occurs when a Constant Vector 4 and a Screen Position node are passed into a ...

Perforce Version Control visually appears to allow deletion of locked files in Content Browser

UE - Editor - Nov 23, 2022

Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...

Undo change to Rest Offset causing crash in Static Mesh Editor

UE - Runtime - Simulation - Aug 8, 2023

When undoing any change to Rest Offset for a collision mesh the engine will crash. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binary //UE5/Release- ...

Free physics constraints between two objects of differing size causes smaller object to jitter

UE - Runtime - Simulation - Sep 13, 2023

A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...

Crash when Copy/Pasting from Older UE Versions

UE - Editor - Mar 17, 2023

When copy/pasting scene objects from older Unreal versions into Unreal 5.1, the editor will crash. ...