Unreal Engine Issues
Unreal Engine Issues
Clear Timer by Function Name does not appear to be callable from a widget blueprint if the function is owned by a UObject
UE - Editor - UI Systems - Dec 12, 2016Clear Timer by Function Name does not appear to be callable from a widget blueprint if the function is owned by a UObject. The Timer clears when the custom event is called by other blueprints, howev ...
Parent Begin Play node does not appear to run the parent code class BeginPlay() function before the rest of the Blueprint's Begin Play functionality
UE - Gameplay - Blueprint - Feb 19, 2015If a Blueprint event graph contains a Begin Play node that connects to a call to the parent function, the functionality present in the Blueprint Begin Play segment is run before the parent Begin Pla ...
Naming an enum parameter on a blueprint function "Category" places the function in a category
UE - Gameplay - Blueprint Editor - Jun 17, 2020If the user gives an enum parameter in a blueprint function the name "Category", this will result in the function being added to a category in the My Blueprint panel. ...
Light Leaking With Raytraced Shadows On Lights With Non-Zero Source Length
UE - Graphics Features - Ray Tracing - Jul 23, 2024Light sources which have the source length attribute set to a value greater than zero seem to be leaking light through occluding geometry (see the image below and repro project). Moving it away from ...
Particle System Warmup Time causing Crash with Light Module and High Quality Lights
UE - Graphics Features - Oct 7, 2016A crash occurs when Opening a level with a Particle System that contains a warmup time and a Light module with High Quality Lights checked. This crash seems very isolated and specific as it does no ...
Ensure failure !bStaticCall nativizing blueprint calling blueprint function library function
UE - Gameplay - Blueprint Runtime - Jan 26, 2017With exclusive nativization enabled and a blueprint calling a blueprint function library function a project fails to package due to an ensure failure !bStaticCall in BlueprintCompilerCppBackend.cpp. ...
Foliage Loses Dynamic Shadows from Moveable Point LIght at given Light to Mesh Height
UE - Graphics Features - May 26, 2015A Movable Point Light placed in the center of a field of foliage meshes will render shadows only at certain heights and going above those heights will cause the shadows to completely disappear. [Im ...
Copying a call to a Custom Event or Function in another Blueprint and pasting it in the Blueprint the Custom Event or Function comes lives in will cause a compile warning or failure
UE - Gameplay - Blueprint - Apr 17, 2015Copying a call to a Custom Event or Function in another Blueprint and pasting it in the Blueprint the Custom Event or Function comes lives in will cause a compile warning or failure. In 4.7.5 it giv ...
Timeline functions do not work inside of Blueprint functions
UE - Gameplay - Blueprint - Dec 20, 2014I could not repro their issue in main. They supposedly recently upgraded to 4.5. I was wondering if you could divide an conquer, and figure out when we fixed this. **EDIT** Was able to repro in mai ...
Overriding a Custom function(From Parent) with no return output in a Child Blueprint results in custom function appearing in event graph of child blueprint.
UE - Gameplay - May 30, 2019Overriding a Custom Function from a Parent Blueprint with no return output in a Child Blueprint results in custom function appearing in event graph of child Blueprint. ...