UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds

OLD - Anim - Sep 4, 2019

In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...

Enabling Fixed Frame Rate doesn't Lock the Frame Rate

UE - Rendering Architecture - RHI - Nov 19, 2019

When a project is set to use a fixed frame rate via the Project Settings it is uncapped when played in editor. Found in 4.24 Preview 2 CL#10091930 Reproduced in 4.25 Main CL#10298106 ...

setting Widget reflector to 0.8 causes menus to flicker

Tools - Sep 19, 2016

Setting Widget reflector to 0.8 causes menus to flicker. The menus begin to flicker between sizes ...

Using a fixed frame rate will cause you to leave the loop section of Montage.

UE - Anim - Runtime - Dec 10, 2021

This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...

Integrate VirtualBones crash fix into next release patch

OLD - Anim - Jun 7, 2017

Athomas reached out to me with a crash he was having when trying his 'Automatic Sync Marker AnimModifier' on a Skeleton that had Virtual Bones. It was verified that this only happens when Virtual B ...

Duplicating an inherited Blueprint float variable defaults it's value to 0.

UE - Gameplay - Oct 18, 2018

When creating an Actor Blueprint (Testbase), and creating a new Blueprint Actor that inherits from Testbase (TestBP).  We can drag an instance of TestBP into the World. If we go back into the Parent ...

Mobile Previewer: Content Scale Factor 0 Issues

UE - Platform - Apple - Jul 13, 2021

There are several reported issues with Save Zones displays in the mobile previewer when the Mobile Content Scale Factor is set to 0.  When MobileContentScaleFactor is set to 0 a couple things hap ...

Fix BinkMediaTextureResource command list crash on UE 5.6

RAD - May 23, 2025

Bink MediaTextureResource assets cause a graphics API crash, due to a missing UAV flag. The Licensee has proposed a fix to add the TexCreate_UAV flag. ...

Widgets always come in to viewport with a zorder of 0 after being removed and added back

UE - Editor - UI Systems - Apr 8, 2015

If a widget is removed from parent and then gets added back to the screen later it will come in with a zorder of 0. ...