Unreal Engine Issues
Unreal Engine Issues
Editor crashes when using pause node in PIE while running on dedicated server
UE - Gameplay - Dec 4, 2014If a user pauses a game while running on a dedicated server the engine will crash. Note: this crashes even when user is given an option to unpause game. Frequency: 2/2 Crash Reporter: [Link Rem ...
Editor Crashes when enabling Vertex Colors on an imported Skeletal Mesh with Morph Target Animations
UE - Graphics Features - Oct 11, 2018Licensee wants to be able to import skeletal meshes which have Vertex Colours (their entire game is Vertex Coloured) and Morph Target animation, but they're seeing a crash when toggling Vertex Color ...
Crash when using CastChecked<>(nullptr, ECastCheckedType::NullAllowed) in configurations where checks are disabled
UE - CoreTech - Jun 19, 2025When using CastChecked<>(), the second parameter can be passed as ECastCheckedType::NullAllowed to make the check succeed when the input is nullptr. However, in UE 5.5 up to the latest engine versio ...
Crash in Anim Budget Allocator when adding fifth budgeted component to the scene in packaged builds when Niagara is enabled
OLD - Anim - Apr 9, 2020The setup is fairly simple: Each time the button is pressed, we spawn an actor with a USkeletalMeshComponentBudgeted component whose skeletal mesh is DefaultSkeletalMesh. When the fifth actor is ad ...
Adding a new macro to a Blueprint Macro Library after renaming the first macro causes a crash
UE - Gameplay - Blueprint - Mar 17, 2022It seems the editor crashes when adding a new Macro to a Blueprint Macro Library. This only occurs if you rename the macro that gets automatically created when you open the macro library to somethin ...
LDR crashes editor on Mac
UE - Platform - Apple - Oct 14, 2021Summary A licensee has reported a crash with HDR.Details A UDN customer has reported that 4.27.1 still crashes when they attempt to enable HDR on macOS. The report also states that the iOS build cra ...
Crash in UWidgetAnimation::CreateDirectorInstance when switching resolution
UE - Anim - Sequencer - Jun 2, 2026Hello, We've encountered a crash in UWidgetAnimation::CreateDirectorInstance when repeatedly switching resolutions. We've had it for a while but it's not until recently that we've found a consisten ...
Opening a widget blueprint on Linux causes editor to crash
UE - Platform - Linux - Aug 25, 2016The editor crashes when attempting to open a widget blueprint. ...
Creating a control rig via FControlRigBlueprintActions::CreateNewControlRigAsset crashes
UE - Anim - Rigging - Control Rig - Nov 10, 2023FControlRigBlueprintActions::CreateNewControlRigAsset is crashing in ResolveObjectHandleNoRead. Looking at the control rig in UControlRigBlueprint::Serialize, it's marked as pendingkill but I'm uns ...
Engine crashes when trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph
UE - Gameplay - Sep 27, 2019When trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph the engine crashes. If the blueprint that is copied into has a GameplayTag variable with the sa ...