[Interchange] Crash on asset re-import

UE - Editor - Content Pipeline - Import and Export - Feb 7, 2025

We've started seeing a crash in editor when re-importing one of our assets. <pre class="ql-syntax">Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 783] Array index out of ...

Deltagen Importer - Materials still import if disabled

UE - Editor - Content Pipeline - Datasmith - Importer - Dec 6, 2018

Materials still import if disabled in Deltagen Fbx Importer. Import Geometry bool also looks to not be functioning. ...

Crash importing morph targets with animation and opening it in animation editor

UE - Graphics Features - Mar 31, 2017

Lina encountered a crash when importing the attached FBX file with morph targets and animation, and then opening it in the animation editor. I was not able to reproduce this issue in QAGame (her re ...

Datasmith CAD Import Texture Scale Is Smaller Scale Than Expected

UE - Editor - Content Pipeline - Datasmith - Importer - Oct 17, 2018

The texture scaling of an imported CAD file is much smaller than that of a standard engine primitive or imported fbx.  Found in 4.19 CL# 4033788. 4.20 CL# 4369336, 4.21 Preview 2 CL# 4472090 ...

[CrashReport] UE4Editor_CoreUObject!FLinkerSave::FLinkerSave() [linkersave.cpp:31]

UE - Foundation - Core - Aug 22, 2017

This is a longstanding and common crash that has occurred since at least the 4.11 release. The error appears to occur while trying to access a .tmp file. User DescriptionsI left unreal unattended ...

Some objects are imported with incorrect position in Keep Hierarchy

TM - Interoperability - Mar 17, 2025

I could only replicate with the user's sketchup file. Exporting this file as fbx, and importing the fbx in KH doesn't have the issue.[Image Removed] ...

UMovieSceneUserImportFBXSettings is not a blueprint type.

UE - Anim - Sequencer - Jan 20, 2021

This class is needed for FBX importing through blueprints. It needs the BlueprintType class specifier. ...

Interchange: Forcing "Bind Pose Time Zero" to true doesn't always give good result

UE - Editor - Content Pipeline - Import and Export - Nov 6, 2024

When using the legacy fbx importer with time zero option to true the skinning is good. So its a regression. Would be awesome if it can be fix in 5.5.1 ...

Cannot create FBXEportOption in blueprints

UE - Anim - Sequencer - Jan 5, 2021

The class UFbxExportOption is not specified as a blueprint type, so it cannot be constructed in blueprints. This class is needed for exporting FBX files from a sequence, which means this functionali ...

Incorrect axis alignment when Importing camera anims from Maya to Matinee

UE - Editor - Content Pipeline - Import and Export - Feb 14, 2015

We have trouble importing camera anims from maya to matinee. In Maya - the axis looks correct... (Z) up... but when the object arrives in UE4 the axis is wrong. The object points in the wrong direc ...