Unreal Engine Issues
Unreal Engine Issues
Hot reloading with a plugin in the project prevents the project from being able to save.
UE - Foundation - Core - Jul 8, 2015Hot reloading a project that includes a plugin will not be able to save if the plugin is used in the project. ...
Blueprint parameter of a function call will break on reload of the editor
UE - Gameplay - Blueprint - Jun 8, 2015When using a code created function call inside of a blueprint that takes in a pointer to a UBlueprint as a paramter the pin for setting the desired blueprint will cause a compile error when the edit ...
Changing screen percentage while in VR Preview will change screen coords for post process shaders
UE - Platform - XR - Jan 30, 2015If a post process volume is set to use a material shader, reducing the screen percentage while in VR Preview will shift the coordinates left/right. ...
Application crashes when blueprint contains a copied timeline
UE - Gameplay - Blueprint - Oct 15, 2015Copied timeline nodes triggers an Android crash and a black screen on the iOS devices. ...
Launch On from Windows to Linux fails with missing GLSL_430 shaders
UE - Platform - Linux - Nov 16, 2016GLSL_430 shaders are not cooked when deploying a project from Windows to Linux using Launch On. LogPlayLevel: PLINK: [31m[2016.11.16-18.36.22:414][ 0]LogMaterial:Error: The global shader cache fi ...
[CrashReport] PhysX3_x64!physx::PxsNphaseImplementationContext::unregisterContactManager() [pxsnphaseimplementationcontext.cpp:644]
UE - Simulation - Physics - Mar 6, 2017This crash is occurring in a developer's packaged project for their end-users. End-user comments are below (unique to the specific project)The game started flickering and then crashed!I set down a ...
[CrashReport] UE4Editor_Landscape!ALandscapeProxy::CreateLandscapeInfo() [landscape.cpp:752]
UE - LD & Modeling - Terrain - Landscape - Jul 14, 2017This is a common crash affecting users through 4.14 to 4.16. Users have not provided any descriptions. Source Context 740 #if WITH_EDITOR 741 ULandscapeInfo* ALandscapeProxy::Creat ...
Cut & Paste in Sequencer breaks with Attach track
zComponent - Archive - Jan 15, 2025Cutting two tracks in sequencer, which one is attached to another one, and pasting it break with Attach track. By this operation, Attack track loses its binding object. Copying such tracks and paste ...
'Malformed sequence hierarchy' ensure hit after modifying sub-sequence tracks
zComponent - Archive - Sep 5, 2025It's possible for there to be multiple instances of the same sequence in the evaluation states cache if the same sequence is used in multiple sub-sections. Caches are never removed from the evaluat ...
UAbilityTask_SpawnActor::BeginSpawningActor may return true when SpawnedActor contains stale value
UE - Gameplay - Gameplay Ability System - Mar 15, 2026UAbilityTask_SpawnActor::BeginSpawningActor assumes the incoming AActor*& SpawnedActor parameter is nullptr if no actor was spawned, but it does not initialize the parameter at the start of the func ...