Unreal Engine Issues
Unreal Engine Issues
Red 'X' gets displayed for stationary light in blueprint editor
UE - Gameplay - Blueprint - Sep 11, 2017Stationary light in a blueprint gets displayed with red 'X' in Blueprint Editor viewport after opening the blueprint for the second time. ...
GetWorldTimerManager() function can crash if called when no valid World is present
UE - Gameplay - Jun 13, 2018A crash can occur within GetWorldTimerManager() if the function is called when no valid World is present. It is not necessarily intuitive to have to make sure that GetWorld() will not return a nullp ...
Unable to call several functions in UMovieSceneParameterSection due to them not being exposed outside of the module
UE - Anim - Sequencer - Jun 14, 2018The AddScalarParameterKey(), AddVectorParameterKey(), and AddColorParameterKey() functions in the UMovieSceneParameterSection class are not currently exposed to be called from outside of the module. ...
Precomputed lighting is not saved when using Save As or Duplicate for levels
UE - Graphics Features - Sep 30, 2016Lighting is invalidated with levels that have been duplicated or Saved As. The maps that are created are immediately marked dirty and need to be resaved vs how they were in 4.12.5 where they wouldn' ...
UAbilitySystemComponent's CurrentMontageStop() function does not use OverrideBlendOutTime Float Parameter.
UE - Gameplay - Jul 2, 2019In the attached example, the third person mannequin character's BeginPlay() runs an Ability_Task which starts an animation montage. In the task it is specified that the blend out time (BlendOutTime ...
Distance Field Artifact with Point/Spot Lights with Mesh scaled to 0 on XYZ
UE - Graphics Features - Apr 30, 2015When using a Spot/Point Light with Distance Fields enabled and a mesh that is scaled to 0 on the XYZ will result in artifacts. ...
Migration from 4.12.5 to 4.13 can result in Blueprint functions losing input/ouput variables
UE - Gameplay - Blueprint - Sep 5, 2016When migrating project from 4.12.5 to 4.13, Blueprint functions can lose input/output variable links. ...
Level Lighting Quality Missing from World Settings
UE - Graphics Features - Oct 17, 2016If you open the world settings, the level lighting quality is missing. This is a regression from 4.13.Note The setting was included in main CL 3149070 ...
Light min roughness set to 0 will create black artifacts on materials with negative roughness value
UE - Graphics Features - Aug 9, 2016Any light's min roughness setting creates black artifacts with materials who have a roughness value less than 0. The min roughness must be =< 0. ...
Modifying Notify Properties no longer updates the NotifyName in Blueprints with custom GetNotifyName function.
UE - Anim - Gameplay - Feb 13, 2025If after placing a notify on an anim sequence timeline you modify a property that is used in the GetNotifyName function of a blueprint notify in engine version previous to 5.5 (5.4.3 for example) th ...