Unreal Engine Issues

Changing Preview Rendering Level hides transform widget

When you change the Preview Rendering Level to Android Preview and then close the project, reopen, and do this again it hides the transform widget. ...

Memory usage spike during PIE doesn't reduce after play session

When opening the editor the memory usage jumps during PIE. After exiting PIE the memory use does not go back down. ...

AI Character Twitching Severely When Moving To Vector Set on Tick

When setting a vector key on tick, and using a dynamic Nav Mesh, the AI Character exhibits severe twitching, and even occasionally gets stuck. This does not occur when the Nav Mesh is set to Stati ...

No Bind option for brush array delegate in UMG

The option to bind to a delegate does not appear when the desired property is in an array. ...

Typo in description of SkySphere Horizon Falloff

The description for Horizon Falloff is misspelled, it says 'Horitzon' instead of 'Horizon'. Edit MattK: This is a content issue because this is a blueprint data variable. ...

Scrollbar in Details Panel Changes Size/Speed when Moved

The user describes this issue as [the Scrollbar] "resizes when it is moved. Sometimes it even starts to flicker for one frame ( showing a very long scroll bar )." "This looks and feels very weird . ...

Crash when splitting up output of collapsed node

A crash occurs when splitting the pin of a collapsed vector node that was connected via a vector connection. This issue is very similar to [Link Removed] however, the callstacks are different so I ...

Android iterating with Launch On in always recompiles android_native_app_glue.c and UELinkerfixups

Android app will get crashed if it disable HDR and run with Vulkan API

The backtrace is： F/DEBUG   : backtrace: F/DEBUG   :     #00 pc 00070e22  /vendor/lib/hw/vulkan.msm8994.so (A4xCommandBuffer::HwProcessWorkload(QglWorkload*)+585) F/DEBUG   :     #01 pc 0004758d  / ...

Simulated ability tasks not being cleaned up in UActorChannel::ReplicationMap

I've noticed the issue occurring in both 4.20.3 (CL 4369336) and 4.21.0 (CL 4541578). The user on AnswerHub has also noticed the issue in 4.20.2 (CL unknown) and claims the issue did not occur in 4. ...