Replay System throws an Ensure during demoplay when calling it in a different Level

UE - Networking - Jul 10, 2019

Replay System throws an Ensure during demoplay when calling it in a different Level. The error is thrown at Source\Runtime\Engine\Private\RepLayout.cpp]. It does not prevent the Replay from being pl ...

Level sequencer's play to(second) function not working as expected

UE - Anim - Sequencer - Aug 22, 2019

The function Play to(seconds) does not functions as it's tooltip implies. "Play the sequence from the current time, to the specified time in seconds". The function instead snaps to the specified tim ...

"Simulate Selected" overwrites "Physics Type" property when playing in Editor

UE - Simulation - Physics - Sep 5, 2019

"Simulate Selected" overwrites "Physics Type" property when playing in Editor. In any subsequent PIE sessions SK_Mannequin will simulate physics even though the option is toggled off. This was repo ...

GetCookedEnvelopeData Blueprint node does not work

UE - Audio - Oct 17, 2019

The GetCookedEnvelopeData Blueprint node does not output cooked audio envelope data when a Soundwave with enabled Amplitude Envelope Analysis is being played. Tested in 4.21 (CL - 4753647), 4.22.3 ...

BP multi-level inheritance does not correctly inherit 'Static' mobility

UE - Framework - Blueprint - Sep 8, 2022

User reported an issue of a mesh not being visible when a project has multi-level blueprint inheritance. After reproing, I believe the root cause is DefaultSceneRoot of the grandchild BP class not c ...

Parameters show up in material instances even if they're not supposed to be exposed

UE - Rendering Architecture - Materials - Feb 28, 2018

In this case, I've added inputs to a material function. That material function input uses a parameter as it's default value. [image: Inline image 1] When referenced in the shader[image: Inline ima ...

ListView crashes when GlobalInvalidation is enabled.

UE - Editor - UI Systems - Slate - Jan 11, 2022

Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...

New Material Thumbnails are appearing distorted

UE - Rendering Architecture - Materials - Jun 1, 2016

When creating a new material the thumbnail will start out as the default material sphere but then quickly appear distorted, almost like its zoomed in really close. This does not affect already creat ...

Selecting the Clean or Rebuild options for a project in Visual Studio does not complete successfully

UE - Foundation - Build - Rocket (Installed Engine) - Jan 17, 2017

Using the Clean option on a 4.15 project in Visual Studio currently fails with Visual Studio stating that it cannot find the ReadyToClean batch label. Selecting the Rebuild option shows the same mes ...

[CrashReport] UE4Editor_Engine!UBlendSpaceBase::UpdatePreviewBasePose() [blendspacebase.cpp:1220]

OLD - Anim - May 11, 2017

This crash has been logged due to high frequency among our users. I have tested in 4.15.2 based on the user comments below, but have been unable to reproduce this issue. In my attempts the Blendspa ...