Collapsed Nodes do not have execution pins highlight during use

UE - Gameplay - Blueprint - Jan 16, 2015

When nodes are collapsed in editor, the execution pins to the nodes do not light up to show their use. ...

Editor crashes if opening a sublevel containing a navmesh when persistent level is open

UE - AI - Sep 8, 2015

If the persistent level is open and a user attempts to open a sublevel that contains a navmesh, the editor will freeze and then crash. Frequency: 3/3 Crashreporter: N/A ...

Duplicated Parameters in a MPC cannot be used always return source results

UE - Rendering Architecture - Materials - Jun 15, 2015

When you duplicate a Parameter in a Material Parameter Collection instead of adding a new Parameter, the duplicated parameter always returns the same results as the source no matter the value entere ...

Destruction mesh with Crumble Smallest and Impact near another will leave residual mesh visible

UE - Simulation - Physics - Destruction - Jan 28, 2015

When using a DM that has Crumble Smallest and Impact damage enabled there will be instances where the residual mesh before fracture is left behind. What appears to happen is there is a force large e ...

Attach actor to actor with the transform set to snap to appears to offset when calling it multiple times on multiple actors

UE - Gameplay - Blueprint - Dec 13, 2016

Attach actor to actor with the transform set to "snap to" appears to offset when calling it multiple times on multiple actors. ...

A Geometry Collection with Removal-On-Break, after breaking and shrinking until vanished, will reset to the original state (full-size and unbroken) if we toggle between Fullscreen and Windowed while playing as standalone or Packaged Build.

UE - Simulation - Physics - Destruction - Oct 28, 2024

A Geometry Collection with Removal-On-Break, after breaking and shrinking until vanished, will reset to the original state (full-size and unbroken) if we toggle between Fullscreen and Windowed while ...

Crash on Importing specific Animation Only FBX

Tools - Nov 16, 2015

When importing the attached FBX file with only Animations, the editor will crash. The Same asset will import without error in 4.9.2 Crash Reporter BUGG: [Link Removed] ...

Crash when loading Anim BP after undoing and saving "Use Shared Rule" in state machine

UE - Anim - Runtime - Jul 19, 2022

Reported by UDN  [Link Removed] From Slack discussion: It seems that undo-ing the transaction in UAnimStateTransitionNode::UseSharedRules, leaves the outer graph (UAnimationStateMachineGraph) wit ...

Copying a Folder in Sequencer and later Pasting it inside Sequencer is resulting in loss of Components

UE - Anim - Sequencer - Aug 8, 2025

Copying a Folder in Sequencer and later Pasting it inside Sequencer is resulting in loss of Components. The pasted folder is not respecting the structure that was copied. This issue only happens on ...

HighResShot's bDumpBufferVisualizationTargets does not work on PNG output.

UE - Rendering Architecture - RHI - Jun 2, 2022

If the same command is executed with 4.27, multiple screenshots will be saved. ...