Animated Cube is at bind pose at the first frame of render

UE - Anim - Sequencer - Oct 16, 2017

Noticing that the location of the animated cube is not in the expected location on the first frame when rendering it out. Looking into that I noticed that I could reproduce it by going outside of th ...

Artifact Dots Appear When Adjusting Focal Distance and Camera Aperture

UE - Graphics Features - Jan 11, 2019

When shifting camera aperture and focal distance, dot artifacts appear on meshes. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4708082 ...

Datasmith gltf importer does not read framerate from the file

UE - Editor - Content Pipeline - Datasmith - Importer - Jul 23, 2021

I'm importing glb or gltf files via the data prep tools but I can't find an option to set the animation fps. It defaults to 30 fps. (it doesn't matter which fps my exported animation has) Is there ...

Syncing issue when stopping and blending out a non-looping montage to an anim graph

UE - Anim - Gameplay - Feb 7, 2023

When syncing from a non-repeating montage that is blending out to an anim graph, the anim montage is marked as a follower due to having its PrevMaker as an AnimBoundary(-1), furthermore in this case ...

HTML5 broken load/save

UE - Platform - Mobile - Apr 12, 2016

save data does not return the same data and crashes the game ...

Crash importing morph targets with animation and opening it in animation editor

UE - Graphics Features - Mar 31, 2017

Lina encountered a crash when importing the attached FBX file with morph targets and animation, and then opening it in the animation editor. I was not able to reproduce this issue in QAGame (her re ...

Root Motion interpolation is incorrect when use URO

UE - Anim - Runtime - Aug 3, 2018

According to Licensee's report, Root motion is incorrect when use URO. I Investigated, in the case of "Montages Only" become TrailMode in URO. Normally Animation Interpolation has implementation, ...

MRQ - MovieGraphEditorExample.py on_executor_finished_delegate not called in 5.6

UE - Anim - Sequencer - MRQ - Jun 13, 2025

From UDN: We are launching jobs using a modified version of MovieGraphEditorExample.py. In 5.5 everything works fine, but in 5.6 the on_executor_finished_delegate is never getting called when all th ...

Behavior tree Composite node tool tip

UE - AI - Apr 17, 2018

In prior versions to 4.19, the tooltips for all the composite nodes had documentation detailing their use. ...

[Feature Request] Event triggering skipped in subsequences and shots

UE - Anim - Sequencer - Feb 11, 2021

Events in subscenes can be skipped if playback skips over the end of the subscene before evaluating the event. ECS allows for determinism fences which can fix this issue. ...