Unreal Engine Issues
Unreal Engine Issues
Get Functions are not Available for Particle Systems via Blueprints
UE - Graphics Features - Aug 4, 2015It looks like the Functions Get Float Parameter, Get Vector Parameter, Get Actor Parameter, Get Color Parameter are listed in the API, but are not callable in a Blueprint. ...
Point Lights Y-Axis Rotation Changed from 4.18 to 4.19
UE - Graphics Features - Jun 6, 2018Possibly related to [Link Removed]. This affects Static, Stationary, and Movable point lights when upgrading a project from 4.18 to 4.19.2 or Main (tested in CL 4101872). If you click the "Reset to ...
Raytracing shadows and lighting not showing in rendertarget
UE - Graphics Features - Lumen - Dec 19, 2019Raytracing shadows and light reflections not appearing in render target Tested in: 4.22.3 CL#7053642 4.23.1 CL#9631420 4.25 CL#10730208 ...
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. ...