AI characters float above the ground only when in a packaged project

UE - Gameplay - Nov 4, 2014

The users AI characters will work correctly while in PIE & Standalone Mode but when in a packaged project they will float above the ground. This was working correctly for the user in 4.4.3 but the ...

Selecting and dragging multiple tracks on Sequence window combines the tracks to one row

UE - Anim - Sequencer - Sep 29, 2023

With plural shot tracks in different rows in the sequencer window, selecting these tracks and dragging one of them (but not the bottom one) left or right will merge the rows. Please check the attach ...

Using variations on the 'shot' console command closes iOS project on device

UE - Platform - Mobile - Jul 6, 2015

Using the console commands 'shot', 'highresshot 1' and 'highresshot 2' will crash to the 'recent apps' menu an ipa with Metal enabled. I tried this with 'Forward Rendering with Metal' disabled and u ...

[CrashReport] UE4Editor_Persona!FReferenceSkeleton::FindBoneIndex() [referenceskeleton.h:252]

OLD - Anim - Jul 20, 2017

This is a common crash affecting users in 4.16, and has occurred since at least 4.14, affecting more than 200 unique users. Unfortunately none of them have provided any additional information. Sou ...

[CrashReport] UE4Editor_CoreUObject!FLinkerPlaceholderObjectImpl::FindRawPlaceholderContainer() [linkerplaceholderbase.cpp:161]

UE - Gameplay - Blueprint - Sep 27, 2017

This is currently among the top 10 crashes coming out of the 4.17.2 hotfix, affecting a few unique users, and this specific callstack does not appear to have occurred in 4.17.1. This may be a regres ...

Crash after network disconnection/pulling network cable

UE - Networking - Jul 11, 2019

A very unfortunate bug shipped in 4.22 that causes a crash in many cases when a client is disconnected from the network, such as when unplugging the network cable. This will be a cert failure on con ...

Some Twinmotion library assets do not render in Path Tracer in files with a large number of assets

TM - Rendering - Apr 17, 2025

Reported in SF [Link Removed] In scenes containing large numbers of certain Twinmotion assets, when activating Path Tracer, some of the assets will not render. The assets will render normally in St ...

Crash when removing mesh and undoing in Character Blueprint

UE - Gameplay - Blueprint Editor - Aug 9, 2023

When removing a mesh from a Character BP and undoing the engine will crash. This issue is occurring in //UE5/Release-5.3 @ CL 26560699 This issue is NOT occurring in //UE5/Release-5.2 @ CL 2600198 ...

Adding a scene component to a child blueprint causes log warnings to appear in output log

UE - Gameplay - Blueprint - Sep 1, 2015

If a scene component is added to a child blueprint and the parent blueprint is compiled, a log warning will appear that states: "LogBlueprint:Warning: USimpleConstructionScript::FixupRootNodeParen ...

Landscape Change Component Size Tool removes foliage from landscape

UE - World Creation - Worldbuilding Tools - Foliage - Dec 12, 2017

Foliage painted onto a landscape will disappear when Sections per Component is changed from 1x1 to 2x2. Affects 4.17.2 CL 3658906, 4.18.2 CL 3794801, 4.19 Main Possible Workaround is to set the Re ...