GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues

UE - Simulation - Physics - Destruction - Aug 30, 2025

GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues. The licensee has provided their analysis: We seem to have stumbled acro ...

Sequencer's View Options>Expand/Collapse Nodes and Descendants (Shift+V) does not Collapse after being Expanded (UE5.6)

UE - Anim - Sequencer - Jun 25, 2025

Sequencer's View Options>Expand/Collapse Nodes and Descendants (Shift+V) does not Collapse after being Expanded (UE5.6). As described in the Steps to Reproduce section, the command expands the prope ...

Crash when confirming a directory to import a USD file to via the USD Stage window

UE - Editor - Content Pipeline - Import and Export - Nov 21, 2019

Crash when confirming a directory to import a USD file to via the USD Stage window The repro does not seem to be 100% consistent and it can take a few attempts to hit the crash. The USD Stage wind ...

game terminated on android device when connect or disconnect usb dongle

UE - Platform - Mobile - Jun 1, 2021

The game crashed when the USB Dongle is connected or disconnected. Games that made by other engines are work fine. Refer to the attached video for the reproduce. ...

Pressing Cancel after ColorPicking a Sequencer's tracked Color will not reverted the color to the previous value

UE - Anim - Sequencer - Jun 22, 2025

Pressing Cancel after ColorPicking a Sequencer's tracked Color will not reverted the color to the previous value. There's a bug when ColorPicking a color that is being tracked in Sequencer - pressin ...

Ensure when closing PIE during Level Sequence playback with spawnables in a streamed level

UE - Anim - Sequencer - Nov 16, 2020

When a spawnable is spawned in a streamed level, exiting PIE will cause an ensure, because the world is not valid on the actor.  ...

Crash launching UE4Editor.exe from cmd.exe with -dx12 argument

UE - Graphics Features - Feb 3, 2017

My Nvidia driver is our current approved driver: 378.49 ...