Crash undoing "replace actor with" when replaced object constructs child actors

UE - Gameplay - Oct 10, 2016

The problem seems to be that the construction scripts doubled up all the BlueprintCreatedComponents, so there are now 2 scene components(actually the same one duplicated) and now 2 child actor compo ...

[CrashReport] UE4Editor_Kismet!FBlueprintGlobalOptionsDetails::CanDeprecateBlueprint() [blueprintdetailscustomization.cpp:5127]

UE - Gameplay - Blueprint Editor - Jul 19, 2017

This is a common crash affecting users in 4.15 and 4.16, affecting over 200 unique users so far. User Descriptionsattempt to import bp from example Source Context 5124 { 5125 // I ...

Navigating the Editor on Linux with a Wacom Tablet is difficult

UE - Platform - Linux - Sep 17, 2018

Movement is quite sporadic and jumpy when using a Wacom Tablet to navigate the Editor on Linux. The Editor pans and zooms in and out really quickly with the slightest of movements. This was report ...

Unable to import animation data from fbx with bone names starting with a number

UE - Anim - Rigging - Control Rig - Jul 31, 2023

When importing animations with numeric names from fbx in UE5.2 or later, the AnimationSequence asset is created but the animation data is not imported. The workaround is to not prefix bones with num ...

CSM Shadows disappearing at larger coordinates with different FOVs

UE - Graphics Features - Shadows - Apr 5, 2024

Cascaded shadows disappear at some FOVs when far from the world origin. This behavior was not present in 5.2. Also found in CL: 32690246 in Release-5.4 ...

Using 'Set Input Mode to Game and UI' and enabling 'Use Mouse for Touch' causes the Mouse to appear in different positions

Tools - Sep 13, 2018

When using 'Set Input Mode to Game and UI' and enabling 'Use Mouse for Touch' this causes the Mouse to appear in different positions and change the direction the camera is facing. This is a regressi ...

[Interchange][FBX] Import of custom collision add the collision mesh material slot to the mesh material slot

UE - Editor - Content Pipeline - Import and Export - Jan 20, 2025

cf part 2 of that UDN https://udn.unrealengine.com/s/question/0D5QP00000rP4CG0A0/interchange-custom-collision-changes-from-fbx-pipeline?fromCase=1 ...

Using the Set Position in Viewport changes anchor values to 0

UE - Editor - UI Systems - Dec 15, 2017

When Using the "Set Position in Viewport" it changes anchor values of a widget to 0. This node seems like this should not be changing the anchor values, but it is unsure if this is intended behavior ...

Duplicated Editor-Runtime actors won't tick

UE - Gameplay - Aug 29, 2018

When duplicating an Actor at Runtime, the duplicated Actor won't execute any tick events when duplicated from the World Outliner or Alt-clicked and dragged in the Viewport. If the Actor is dragged i ...

UMG screen size setting needs update for new mobile devices

Tools - Oct 29, 2018

We're missing settings for iPhone XS iPhone XS Max iPhone XR Google Pixel 3 Google Pixel 3 XL Samsung Galaxy Note 9 We also don't have settings for iPad 5th Gen or iPad 6th Gen, however these would ...