Re-importing an FBX with embedded media will not update the textures

UE - Editor - Content Pipeline - Import and Export - Nov 4, 2014

BRANCH: MAIN CHANGELIST: 2323471 PLATFORM: Windows DESCRIPTION: Creating an FBX with media embedded and later overwriting that FBX with a new file that updates the material and the mesh, only the ...

Undoing pasting a component will crash ([CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::IsValid() [weakobjectptr.cpp:48])

UE - Gameplay - Components - Jul 20, 2017

This is a common crash affecting users in 4.16. The callstack is similar to [Link Removed], which was fixed in 4.13. User DescriptionsAccidentally duplicated a blueprint with multiple static mesh ...

Net Cull Distance does not work with Pawn only Character

UE - Gameplay - Player Movement - May 4, 2015

Licensee also posted on Asnwerhub here, https://answers.unrealengine.com/questions/220787/bug-net-cull-distance-doesnt-work-when-the-player.html Also Reproduced in Main Promotable-CL-2535351 & Rele ...

[CrashReport] UE4Editor_Kismet!FQuatRotationMatrix::FQuatRotationMatrix() [quatrotationtranslationmatrix.h:43]

UE - Gameplay - Aug 31, 2018

User comment in crash group:Please Contact me to help fix this. I don't know what else to do. 41 FQuatRotationMatrix(const FQuat& Q) 42 ***** : FQuatRotationTranslationMatrix(Q, FVect ...

Push based fast array with net.PushModelSkipUndirtiedFastArrays not replicating across multiple PIE sessions

UE - Networking - Sep 19, 2022

The conditions for this bug are fairly specific. The actor must be statically placed, with its only replicated property being the fast array, and net.PushModelSkipUndirtiedFastArrays must be enabled ...

Gameplay Ability System Attribute Modifiers with a duration (including infinite) do not respect tag requirements

UE - Gameplay - Gameplay Ability System - Feb 21, 2024

When using infinite or duration-based effects, required and ignored tags will have no effect on attribute modifiers. This appears to be caused by OnAttributeAggregatorDirty (GameplayEffect.cpp:2917) ...

Safezones on Android not set properly when orientation changes

UE - Platform - Mobile - Nov 5, 2024

Looks like the resize that does the safe zone update is done before the orientation is updated.  I suggested swapping the order to licensee in the UDN ticket and it worked for him.  This should be t ...

bIgnoreAllPressedKeysUntilReleaseOnRebuild in Enhanced Input behaves unexpectedly during pawn possession

UE - Gameplay - Input - Jun 11, 2025

This is a speculative bug report from the user.  The fix for this is to re-do the work of 31224705 but in a better way. The "bShouldBeIgnored" flag is being overriden by the previous mapping's va ...

Fresnel material doesn't display properly in content browser and sometimes weird in material viewport

UE - Rendering Architecture - Materials - Aug 4, 2015

When a material is created and saved using the fresnel node, the fresnel effect does not show in the Content Browser thumbnail. Also, when editing the material, zooming in and out with the mouse wh ...

LIVE: EDITOR: FBX: Combined Meshes Flag does not work when importing multiple LODs in a single FBX

UE - Editor - Content Pipeline - Import and Export - Oct 10, 2014

BRANCH: MAIN CHANGELIST: 2322258 PLATFORM: Windows DESCRIPTION: When importing a mesh into the editor if there are multiple LOD setup meshes in a single FBX they will not import as a single asset w ...