Unreal Engine Issues
Unreal Engine Issues
Moving an actor between levels causes properties marked DuplicateTransient to reset to default
Tools - Nov 22, 2017Currently, properties marked DuplicateTransient will be reset to default when their actor is moved to a different level. This happens because we use the clipboard to virtually cut the actor out of o ...
LIVE: ProjectileMovement component does not function when a PrimitiveComponent is missing or removed from the Components
UE - Simulation - Physics - Nov 18, 2014A projectile brought over from 4.5.1 or earlier that does not have a Primitive Component as the Root, or removing the root from the projectile in 4.6, returns an error: "Movement component [Projecti ...
[CrashReport] UE4Editor_CoreUObject!PackageReloadInternal::LoadReplacementPackage() [packagereload.cpp:274]
Tools - Aug 17, 2018No user comments in crash group 262 UPackage* LoadReplacementPackage(UPackage* InExistingPackage, const uint32 InLoadFlags) 263 { 264 if (!InExistingPackage) 265 ...
Camera Switcher Import option not functioning properly
UE - Anim - Sequencer - Oct 22, 2019In UE 4.20 we got a feature that let you import a FBX file that contains cameras with a camereaswitcher to create a "camera cut track" within sequencer. From the release notes of 4.20: https://docs ...
fbx metadata does not persist
UE - Editor - Content Pipeline - Import and Export - Jul 21, 2020Delete an SKM asset Import the original fbx so that a new SKM asset is made in the exact same location in the content browser Apply some metadata tags or confirm that the asset imported with fbx m ...
Setting location of Child Actor inside of OnConstruct causes the ChildActor to leave behind non-referenced instances
UE - Gameplay - Feb 10, 2016If the ChildActorComponent on a mesh is attached to a component and then has its location set in the OnConstruct function, it'll leave behind non-referenced instances of itself. This is most apparen ...
Installed Editor doesn't package the right target if Marketplace plugin are installed before first launch
UE - Platform - Jun 18, 2024Something is wrong with the TargetInfo.json file generated when they are some Marketplace plugin installed. The client reported this workaround: Backup the plugins found in Engine\Plugins\Marketp ...
Mutable bake instance overwrite instead increments
UE - Anim - Mutable - Nov 13, 2025We are using Mutable and right now we can't overwrite already baked SK instances. This occurs when, we have a set variation for a character and we address a feedback on one of the used skeletal mesh ...
Crash on iOS9 when using Apple's CFNetwork library
UE - Platform - Mobile - Dec 6, 2016Many clients have hit a crash due to an Apple library using operator delete on a memory block that was not allocated with operator new. This happens with the following callstack on iOS9 in UE4.13 o ...
Custom Events with duplicate input names will not compile
UE - Gameplay - Blueprint - Jan 12, 2015Custom Events with duplicate input names will not compile. This does not occur immediately: creating two Custom Events with two identically named inputs will not cause a compile error, but if you re ...