Actor moves between levels when using Convert Actor

Tools - Jan 9, 2017

Using Convert Actor when the wrong level is selected can cause the actor to move levels. This doesn't seem to happen with every actor type but is 3/3 reproducible using the steps provided. User Des ...

In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled

UE - Simulation - Physics - Destruction - Jun 30, 2025

In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled. To verify this, follow the steps provided in the Steps to Re ...

Force Next Floor Check doesn't work when the player is stopped

UE - Gameplay - Player Movement - Oct 6, 2016

Force Next Floor Check doesn't work when the player is stopped, even though the tool tip says that it does. User Description: I'm trying to shrink / grow the collision capsule for our needs but wh ...

Mobile Map loading times have increased from 4.12 to 4.13

UE - Platform - Mobile - Oct 4, 2016

The loading time from 4.12 to 4.13 on mobile devices seems to have increased quite a bit. My results: 4.12.5 Windows 7 - Launch On: Loading Level 2 - .51 Loading Level 3 - .74 Loading Level 1 - .73 ...

Certain UPROPERTY values are not updated during auto-recompile

UE - Gameplay - Blueprint - Aug 4, 2016

Sometimes manual recompile is required to make a blueprint actually recompile data-only changes, but not always. If the last manual compile was with default values, then changes are not updated. If ...

ARKit portrait image aspect ratio incorrect on iPhone 6s,7, probably all phones.

UE - Platform - XR - Nov 29, 2017

As described in this UDN thread, the iPhone 7 manifests incorrect image aspect ratiohttps://udn.unrealengine.com/questions/403841/ios-arkit-portrait-mode-stretching-on-iphone-7.html [Link Removed] ...

Crash when using pooled widgets in an invalidation panel

UE - Editor - UI Systems - Slate - Aug 3, 2016

Widgets that are pooled are given a pointer to a layout cache, if the layout cache dies, the pointer is bogus. Going to need to move over to using weak pointers to avoid the crash, will add some pe ...

ContentExamples: Physics Level Multiple misspellings

Docs - Samples - Jan 19, 2017

Physics Example 1.1 "StaticMesh" is one word The word Static Mesh is 2 separate words in unreal documentation https://docs.unrealengine.com/latest/INT/Engine/Content/Types/StaticMeshes/ ...

Directx12 crashes with OOM

UE - Graphics Features - May 7, 2018

In editor, when running a task that does not issue a BeginFrame/EndFrame for a long time, the GPU will eventually run out of memory.  See UDN: https://udn.unrealengine.com/questions/431450/directx1 ...

Investigate state of embedded and dynamic framework support on iOS

UE - Platform - Apple - Jun 5, 2020

Licensee reports it's not possible to use the dynamic framework used by the latest release of the iOS version BugFender - [Link Removed] Licensee bug report: : https://github.com/bugfender/Bugfende ...