Ignore Base Actor Rotation set to false continues to ignore base actor rotation

UE - Gameplay - Apr 14, 2015

Setting Ignore Base Actor Rotation to false continues to ignore base actor rotation when standing on an object that is spinning. ...

AnimGraph not present in Child of AnimationBlueprint with Parent Class: AnimInstance

OLD - Anim - Sep 10, 2015

A Child Blueprint derived from an AnimBlueprint generated with AnimInstance as the parent class will not contain an AnimGraph. ...

Blueprint Instanced static meshes generated in construction script do not bake lighting properly

UE - Graphics Features - Mar 12, 2015

Blueprint's with an instanced static mesh that has instance components added via construction script will fail to build lighting correctly when the pivot is placed outside the lights radius. This ...

Root Motion from Everything doesn't accept Root Motion from Montages

OLD - Anim - Feb 18, 2016

Root Motion from Everything doesn't accept Root Motion from Montages in 4.11. This works in 4.10. Can regress down the issue if needed. ...

Real-time thumbnails causing large performance issues

UE - Graphics Features - Feb 1, 2017

When Real-Time Thumbnails are enabled in the content browser and you have many blueprints with static meshes (or anything that is rendered in the blueprint's viewport), the real-time tooltips cause ...

Crash on Mac when adding Convex Collision to a mesh converted from a brush

UE - Platform - Apple - Jun 6, 2017

This is one of the top Mac crashes occurring in 4.16. Caused by adding Auto Convex Collision to a mesh converted from a brush. Does not occur on Windows. User DescriptionsI was trying to add a conv ...

GearVR trackpad quadrant buttons not detected in TM-MotionControllers

UE - Platform - XR - Jul 12, 2017

Using the TM-MotionControllers map as a test for GearVR, the 4 buttons in the trackpad quadrants of the bluetooth controller don't register via the blueprint. This issue did not occur on Vive at th ...

[CrashReport] ULevel::GetWorldSettings() - UMaterialInstanceThumbnailRenderer::Draw

Tools - Aug 29, 2017

This is a common assertion that has occurred since at least 4.14 and affected nearly 100 users. The callstack is similar to [Link Removed], which was marked fixed for 4.14. User DescriptionsUndoi ...

Niagara Systems Don't Scale With Skeletal Meshes When Called From a Montage

UE - Niagara - Jan 2, 2020

When a Niagara System is called from a montage is doesn't scale with the skeletal mesh that uses the montage. Attached is an example project. Found in 4.24.1 CL#1077647 Reproduced in 4.23.1 CL# 9 ...

Reimporting sprite sheets does not work correctly if the editor has ever been closed and reopened since initial import

UE - Gameplay - Paper2D - Aug 1, 2020

UPaperSprite::PostLoad() now sets BakedSourceTexture, BakedSourceUV, and BakedSourceDimension (if AtlasGroup is nullptr). There's nothing in reimport that sets them, so they are stale/latch to the ...