Unreal Engine Issues
Unreal Engine Issues
Crash when using StepToNextShot / PreviousShot with sequencer
UE - Anim - Sequencer - Jul 24, 2018A crash occurs when you press the Shift key + [.] (Period) key after double-clicking on one of the arranged level sequences in the master sequence. The cause is ActiveTemplateIDs of FSequencer. The ...
GameFrameworkComponentManager crashes when modifying init state callbacks during state change
UE - Gameplay - Feb 28, 2024The GameFrameworkComponentManager has a system for registering callbacks to execute in response to event changes. This ends up calling UGameFrameworkComponentManager::CallFeatureStateDelegates which ...
Unreal crashes when you connect scalar node to scalar input, when material function has a vertex interpolator
UE - Graphics Features - Mar 19, 2018There is an issue occurring where Unreal crashes when you connect a scalar node to scalar input when the material function has a vertex interpolator. This issue causes the engine to crash, but the i ...
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 ...
Using the Execute Console Command node to run demoplay causes the editor crash/freeze
UE - Networking - Nov 13, 2015This bug has different behavior throughout the 4 different versions listed. 4.8.3 - Gives an assert 4.9.2 & 4.10 - Gives a fatal error crash 4.11 (Main) - Freezes the editor without a crash report ...
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 ...
Adjusting slider in Blend Space Animation causes editor to Crash
OLD - Anim - Oct 28, 2014UPDATE: Date: 2/5/2015 Likely an instance of the same crash: [Link Removed] CrashReporter Bugg (Crash List): [Link Removed] When updating a project from UE4.4.3 to UE4.5.1 editor crashes when adju ...
Crash when Viewing shader complexity in VR Vive
UE - Platform - XR - Apr 11, 2016If the user presses F5 while using the Vive in VR preview the editor will crash ...
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 ...