Planar Reflections Not Behaving As Expected in Splitscreen

UE - Graphics Features - Dec 19, 2018

This occurs in //UE4/Main @ CL 4670176 Not a Regression. This is similar to https://jira.it.epicgames.net/browse/UE-59149 but when adding more player characters it seems to change the planar reflec ...

Using Delay with Tick when Paused doesn't work

UE - Gameplay - Blueprint - May 28, 2015

Using a delay node in an event graph of actor using tick when paused will not work. It pauses the delay node. ...

Cannot compile a nativized Blueprint with a function that takes an interface as an input parameter and uses it inside the function (e.g. dynamic cast to object).

UE - Gameplay - Blueprint - May 27, 2020

Issue occurs because there is a legacy code path that forces all interface parameters to be declared as 'const' in function declarations, even if CPF_ConstParm is not set in exported C++ code. This ...

Exponential Editor Slate Performance Cost When Editing An Asset With Nested Instanced Structs

UE - Editor - Workflow Systems - Feb 20, 2024

UDN Issue: [Link Removed] ...

Physics Constraints do not have the same values if they are part of an 'Always Loaded' level

UE - Gameplay - Dec 3, 2014

Physics Constraints do not have the same values if they are part of an 'Always Loaded' level. They will work correctly in the Persistent level and a level that is Streamed in. This becomes problem ...

Collision of child actor doesn't rotate if the parent is simulating physics

UE - Simulation - Physics - Aug 11, 2015

Collision of child actor doesn't rotate if the parent is simulating physics. This was an old bug that an AnswerHub user reported back in 4.9 but now a licensee is reporting this same behavior in 4.1 ...

Hidden enumerator variables can cause the enumerator to become broken with the Select node in blueprints

UE - Gameplay - Blueprint - May 26, 2015

If a user makes an enumerator in C++ and sets one of the variables to Hidden and doesn't make it the last variable of the enum, it will cause issues with the numbering of the enum when using the Sel ...

In Editor, Blueprint resources are not freed up when the Blueprint is closed

UE - Framework - Blueprint - Feb 16, 2024

It appears that the preview scene used to render thumbnails is not destroyed after a thumbnail is rendered, even after the blueprint editor is closed and GC is run. Also found in Release-5.4, CL: 31 ...

Instanced EditInlineNew Objects not correctly propagating to children and placed level instances

UE - Gameplay - Mar 3, 2020

Instanced EditInlineNew objects are kind of broken right now and hard to make full use of. In addition to the notes above, there are some cases where you can't even assign new values into the base c ...

Animating blueprint mesh duplicates uncontrollably

UE - Gameplay - Components - Apr 15, 2015

When animating within a blueprint of a subclass created in c++, the animating mesh replicates itself uncontrollably. Added to .h: UPROPERTY() UBoxComponent* BoxComp; UPROPERTY() USkeletalMeshCompo ...