Level Instance: UWorld::BlockTillLevelStreamingCompleted doesn't do recursive Level Instances

UE - World Creation - Worldbuilding Tools - Level Instances - Sep 19, 2023

Quality settings should not affect landscape resolution

UE - LD & Modeling - Terrain - Landscape - Mar 10, 2015

Changing the quality settings (or having them change on you automatically in the editor) drops mips on landscape heightmap textures, which isn't desirable as it makes it look like there are collisio ...

Crash in K2Node_CallFunction

UK2Node_CallFunction::GeneratePinTooltipFromFunction relies a lot on loops that increment the index used to check the individual characters in the comments. The problem is that there are a few miss ...

Lightmaps not carrying over with 'Save Current As'

UE - Graphics Features - Lumen - Jul 17, 2020

I can reproduce it, other developers reported to me too.  Not a problem in 4.22 ...

Error when zooming out in orthographic view in 5.4

UE - Editor - Jul 29, 2024

In 5.4: zooming out far with the mouse wheel after setting the editor viewport to orthgraphic view triggers an ensure: ensure(InOrthoZoom >= MIN_ORTHOZOOM && InOrthoZoom <= MAX_ORTHOZOOM); Th ...

UMG SetAnimationCurrentTime no longer works

UE - Anim - Sequencer - Mar 6, 2025

Convert Transform to Relative node could use more information

UE - Gameplay - Blueprint - Jun 10, 2016

It appears that "Convert Transform to Relative" can be confusing. Users are saying that they expect the nodes to be swapped in what they think their function would be. One person as suggested that a ...

AI MoveTo Blueprint node will zero velocity on Pawn when called, causing a freeze if the Pawn is already moving

UE - AI - Oct 4, 2016

AI MoveTo Blueprint node will zero velocity, causing a stop when a new destination is set if the Pawn is currently moving. Regression: Yes Worked: 4.12.5 (CL 3039270) Broken: 4.13.1 (CL 3142249) F ...

PostRepNotifies may not always be called

UE - Networking - May 8, 2018

FObjectReplicator::UpdateUnmappedObjects calls  CallRepNotifies, but does not call PostRepNotifies. Further, the order of CallRepNotifies and PostNetReceive in FObjectReplicator::UpdateUnmappedObje ...

USD Stage is not available on Mac and Linux

UE - Editor - Content Pipeline - Import and Export - Dec 17, 2019

On Mac and Linux the option to open the USD Stage window is not there like it is on Windows. This is not a regression since USD Stage was not preset in 4.23.1 (CL-9631420) on any platform. ...