Unreal Engine Issues
Unreal Engine Issues
A crash occurs inside the Unreal Editor when we change the Spline Point type of a spline point, and we subsequently select another spline point
UE - Editor - Workflow Systems - Jul 22, 2024In versión 5.4, a crash has been found when using splines inside the LevelViewport. This crash occurs when we change the Spline Point Type of a spline point, and subsequently we select another splin ...
InlineEditConditionToggle Prevents Config Bools from Being Written to Settings .ini File
UE - Editor - Workflow Systems - Apr 1, 2025In a Developer Settings Class, Boolean properties marked with InlineEditConditionToggle do not get written to the associated settings .ini file, preventing configuration settings from being saved pr ...
Collision Drawing in Cooked Builds (Development) doesn't Show Geometry for Nanite Meshes
UE - Rendering - Graphics Features - Jun 2, 2025Context The showFlag.CollisionVisibility 1 cvar is a viewport visualization mode that highlights which Actors will block visibility. The showFlag.CollisionPawn 1 cvar is a Player Collision viewmode ...
FInstancedStruct does not serialise to JSON when used in a DataTable
UE - AI - Aug 4, 2025The JSON export functionality for DataTable relies on a FieldIterator to gather properties. This iterator is unable to gather the properties from the InstancedStruct. CSV export functionality works ...
Landscape overdraw bug
UE - Graphics Tools - Terrain - Feb 26, 2026When Landscape GPU Culling is operational, patches of Landscape will have heavy overdraw. This requires Nanite and Lumen to be disabled - the test project is set up with this by default. This quad ...
Potential wrong branch condition about DFAO and Niagara GPU SDF Collision
UE - Niagara - Mar 6, 2026Particles using Distance Field collision can have their collision controlled by "r.DistanceFieldAO". It appears that the condition in "ShouldPrepareGlobalDistanceField(...)" from DistanceFieldAmbie ...
UAbilityTask_SpawnActor::BeginSpawningActor may return true when SpawnedActor contains stale value
UE - Foundation - 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 ...
Setting custom world settings blueprint in project settings causes editor to crash on open
UE - Gameplay - Aug 19, 2015If a blueprint based on a custom World Settings class is set in the project settings then the editor crashes on open ...
Projects saved outside of default folder do not show up in Project Browser on Linux
UE - Platform - Linux - Jun 17, 2015If a project is saved outside the default Unreal Projects folder or the project folder is moved from Unreal Projects to another location it does not show up in the list of projects on the Project Br ...
Include Render Pass name as variable in Filename Format field
UE - Anim - Sequencer - Jan 4, 2016When outputting with Custom Render Passes, the Render Pass is automatically added at the end of the output frame file name. We have a few variables that we can control in the FileName Format sectio ...