On Released fires when holding down a button when using touch (mouse/finger not moving)

UE - Editor - UI Systems - Sep 26, 2017

On Released fires when holding down a button when using touch with the mouse or finger. This happens in mobile preview as well as on devices. As a note, if he mouse is moved before the release auto ...

Impossible to reparent blueprint class that has a broken parent class when using compilation manager

UE - Gameplay - Blueprint Compiler - Dec 8, 2017

Alternatively use BP_ParentClassIsMissingType in QAGame ...

Default values of map variable with instance editable set to true cannot be changed for instances in the level

UE - Gameplay - Blueprint - Feb 6, 2018

It appears that the information contained in a map variable that is been marked as instanced editable can not have the information changed from the default values. An instance who values have been c ...

Blueprint EventDispatchers unable to be reordered

UE - Gameplay - Blueprint Editor - Feb 15, 2018

UI appears to support EventDispatcher reordering, however reordering does not occur. ...

Memory Leak when Debugging Blueprint

UE - Rendering Architecture - RHI - May 2, 2018

RAM usage continually increases when debugger is active https://answers.unrealengine.com/questions/784443/ue-4191-memory-leak-while-using-blueprint-debugger.html ...

Invalidation box appears inconsistent when using child widgets

UE - Editor - UI Systems - Jun 21, 2018

Invalidation box appears to be inconstant when using a child widget that has been added via the user created section. A child widget that modifies itself will not update when placed inside of an inv ...

Adding a call to the parent function when executing an inherited multicast event on a client results in the events being called on the client twice

UE - Gameplay - Blueprint - Apr 2, 2019

A user has reported that adding a Parent call to an inherited multicast function causes the event to be called twice if it is executed on a client. Regression?: No This occurred in 4.20 Link to te ...

Mobile HQ reflection option does not use the sky reflection cubemap.

UE - Platform - Mobile - Mar 28, 2018

See attached image., the selected sphere is using HQ reflections. HQ reflection code does not look for sky captures. Note that the sky capture does not require the parallax correction code. ...

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float"

UE - Gameplay - Sep 13, 2019

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float". Found in 4.22.3 CL#7053642 Reproduced in 4.23.0 CL#8386587, 4.24.0 Main CL#8671808 ...

Unable to Select Item from list in blueprints under certain conditions

UE - Editor - UI Systems - Slate - Feb 25, 2020

[Image Removed]  This happens with not only enums, but any combo box. Another example is the "Create Event" where you can select a matching function. This is a problem with how this slate widget ...