Unreal Engine Issues
Unreal Engine Issues
ReplicatedUsing stops getting called after setting a value to nullptr.
UE - Networking - Oct 20, 2016Eventually, the ReplicateUsing function called out for a UPROPERTY is no longer being called. After investigation, it appears that the data is making it from the Server to the Client, but that the d ...
Overriding a struct member field's default value on a BP-added component in a BP asset will no longer allow the user to edit that struct member on instances of that BP's component if the member is deprecated.
UE - Framework - Blueprint - Oct 19, 2023Properties that are deprecated are (incorrectly) not currently being propagated to instances by the duplication logic that we use to instance BP-added components as part of Actor-based BP constructi ...
Lumen indirect lighting artifacts when far from world origin
UE - Graphics Features - Lumen - Feb 6, 2024Lumen seems to not be using Large World Coordinates somewhere. The Lumen Scene develops artifacts at large distances (5000 KM) from the world origin. ...
Crash when creating deferred decal material when using -d3ddebug command line argument to launch editor
UE - Graphics Features - Jul 18, 2016Discovered this while verifying [Link Removed]. Devs informed me of a command line argument that could be used to output D3D11 debug information and using it caused crashes in both //UE4/Main @ CL 3 ...
Setting a variable to private after making changes in a child blueprint will retain changes by prevent further access
UE - Gameplay - Blueprint - Sep 22, 2017When declaring a variable to be private, any instances of that variable being changed in child blueprints (before hand) will remain as they were before the variable was declared as private. However, ...
Gameplay Effects can hold stale references to GameplayTags when switching Gameplay Effect Component type
UE - Gameplay - Gameplay Ability System - Jan 9, 2024Gameplay Effects can hold stale references to Gameplay Tags when the adding component is switched for a different type. The tags are serialised, and their presence can be confirmed with Reference Vi ...
'Set Playback Position' node fires Timeline event even if 'Fire Events' is set to false
UE - Gameplay - Apr 30, 2015'Set Playback Position' node fires Timeline event even if 'Fire Events' is set to false. User Description: Basically using the set playback position node to set a new time position for a timeline ...
Foliage is not partially loaded after InstancedFoliageGridSize is changed by WorldPartitionFoliageBuilder commandlet
UE - World Creation - Worldbuilding Tools - Foliage - May 27, 2022Changing the InstancedFoliageGridSize by the WorldPartitionFoliageBuilder commandlet will cause some of the foliage to not load correctly. ...
Crouching/Uncrouching while standing on a physics object will cause the object to behave erratically
UE - Gameplay - Sep 7, 2016Crouching/Uncrouching while standing on a physics object will cause the object to behave erratically. Even if the CharacterMovement component has Physics Interaction disabled, it will still effect t ...
Lighting on Paper 2D Tile Maps is Broken
UE - Graphics Features - May 8, 2018In 4.18.3 this feature is working. In 4.19.2 the feature is broken. Per User: Half of the Lights Cone or Sphere will properly interact with the TileMap as intended, the other half will not for wha ...