UAssetImportTask::bReplaceExisting is not supported with interchange

UE - Editor - Content Pipeline - Import and Export - Aug 25, 2023

Add this code to a function you call from a blue utility widget or any other way to start the import with this code.TArray<UAssetImportTask*> ImportTasks; for (int32 i = 0; i < cFC.Files.Num(); i++) ...

Widgets stick out from letterboxed player screen on 4.25

UE - Editor - UI Systems - Sep 28, 2020

Note:   Clipping on letterboxed player screen works fine on 4.24.   This issue was brought in by CL#10541213. Here's a workaround TSharedPtr<SGameLayerManager::FPlayerLayer> SGameLayerManager::Fin ...

Event dispatchers show replication settings but don't support replication

UE - Gameplay - Blueprint Editor - Mar 18, 2022

We should ideally hide the setting, but at the very least we can make it a warning if you check it indicating it's not gonna do anything. [Link Removed] ...

Number of Frames in Animation Change on Import When the Frame Rate is Set to 30 or 60 in Maya

Tools - Feb 12, 2018

-When imported into 4.17.2 the 30fps animation had 42 frames. In any engine version after the animation has 17 frames -The 60 FPS animation only has 7 frames in all engine version ...

Navmesh drawing is not visible during Simulate or PIE unless Supported Agents includes the first agent

UE - AI - Navigation - Jan 29, 2020

In Simulate or PIE it is not possible to see any Navmesh Volumes past the 1st in a multi-navmesh setup. Any Nav Volumes after the 1st need to have the 1st one enabled for them to be drawn in the Lev ...

Unable to import animation data from fbx with bone names starting with a number

UE - Anim - Rigging - Control Rig - Jul 31, 2023

When importing animations with numeric names from fbx in UE5.2 or later, the AnimationSequence asset is created but the animation data is not imported. The workaround is to not prefix bones with num ...

Disabling Bluetooth controllers also disables the Android Back input event

UE - Platform - Mobile - Sep 21, 2018

Disabling Bluetooth Controller support for Android also causes the Back button of the navigation bar to not work properly, as the input event does not fire when it is pressed. Regression?: No This ...

GameplayAbilitiesSystem: GameplayCues OnRemoved never firing

UE - Gameplay - Gameplay Ability System - Nov 15, 2023

This behaviour was introduced in the following changelists in 5.3: CLs 25371706 and 25407985 https://github.com/EpicGames/UnrealEngine/commit/6e985ceeb98bc0d166756ccd3e3c0b0350d02265https://github. ...

Maximum number of State Machine connections?

OLD - Anim - Mar 16, 2015

Adding more than 8 connections to or from a state in the state machine results in unpredictable behavior, like causing an animation to fail. (See image.) Was able to reproduce with user's test file ...

UHT doesn't support trailing const in some declarations

UE - Foundation - Cpp Tools - UnrealHeaderTool - Sep 17, 2018

UnrealHeaderTool cannot parse certain declarations with a trailing `const` instead of a leading `const`. ...