[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 ...

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 ...

Syncing changes in multi-user editing tool results in crash

UE - Virtual Production - Tools - Multi-user - Dec 18, 2019

When using the multi-user editing tool inside a 4.24 project, persisting changes will sometimes result in a crash.  Unable to reproduce the issue. However, the user has reported occasionally re ...

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 ...

Reimporting a skeletal mesh by dragging FBX to content browser crashes editor

Tools - Nov 12, 2015

Reimporting a skeletal mesh by dragging FBX to content browser crashes the editor. I suspect something is wrong with the FBX. The user reported that the data is from Blender. FBX file attached for ...

[CrashReport] FIntroTutorials::AnalyticsEventNameFromTutorial()

Tools - Jul 6, 2017

This is a common crash that appears to have started in the 4.16.1 hotfix, but has occurred with more frequency in 4.16.2. User DescriptionsAfter the blueprint tutorial, I pressed "play", pressed ES ...

Adding Text Render Component at Runtime Crashes Standalone

UE - Gameplay - Components - Nov 2, 2015

Adding a text render component to a blueprint through C++ at runtime crashes the standalone player. It does not have any effect on PIE. Also, this only seems to occur when the blueprint in question ...

Custom Component Being Added to Wrong Target Blueprint

UE - Gameplay - Components - Nov 2, 2015

When attempting to add a custom component to a blueprint at runtime using the Add Component function, if you give the component an exposed variable, it will ignore whatever target you specify and ad ...

No shadow cast after Static Mesh Editor material assignment

UE - Editor - Content Pipeline - Datasmith - Importer - Apr 21, 2020

This is a Rhino file. Shadows are not cast on the Static Mesh after materials are assigned in the Static Mesh Editor. This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4. ...