Blueprint class's property is overridden by parent blueprint class

UE - Gameplay - Components - Nov 2, 2020

I did some research. The problem is caused in CoreNative.cpp. In Function GetInstancedSubobject (Line 126) We should check if instance is runtime instance first. If it is runtime instance, just us ...

Anim Curve Data Does Not Appear in Montages When Using Animation Modifier, MotionExtractorModifier

UE - Anim - Runtime - Apr 28, 2022

Occurs 5/5 times Regression does not occur as the MotionExtractorModifier appears to be new with UE5.  Curve data is not displayed in an Animation Montage when Animation Modifier, MotionExtractorM ...

UWorld::GetNetMode returns incorrect value during UGameInstance::StartPlayInEditorGameInstance

UE - Networking - Jan 19, 2023

During PIE instance initialization, there seems to be a window during which UWorld::GetNetMode will not return the expected value: before the instance's NetDriver has been created but after UGameIns ...

Selected tool using ScriptableTool might get closed when selecting an exposed property.

UE - Graphics Tools - Modeling Tools - May 21, 2024

When using a created tool of the ScriptableTool plugin, and setting an InstanceEditable variable, the tool might get close. For this to happen, we need to have a ToolPropertySet attached to the too ...

UWorldPartitionSubsystem::IsStreamingCompleted returning the wrong query result when all cells and actors in location are in DataLayers

UE - World Creation - Worldbuilding Tools - World Partition - Jul 24, 2025

Context: Data Layers is a system within World Partition used to organize Actors both in the Editor and at runtime. It allows for the user to dynamically load and unload layers in the Editor to help ...

Context sensitive actor list retrieves temp folder data in blueprints while using source control

UE - Gameplay - Blueprint Editor - Nov 12, 2015

If a project uses source control and a blueprint has been diffed against previous revisions, the revisions will appear within the temp folder. This temp folders contents appear in context sensitive ...

Blueprint Interfaces cannot pass by reference between two blueprints

UE - Gameplay - Blueprint - Feb 25, 2015

Pass by reference variables do not work when called from a blueprint interface between two blueprints. Workaround: Use direct communication to pass by reference between two blueprints. ...

ForEachLoop doesn't iterate through all of the actors returned by the Get Overlapping Actors node

UE - Gameplay - Blueprint - Apr 10, 2015

ForEachLoop doesn't iterate through all of the actors returned by the Get Overlapping Actors node. Note: You can workaround this issue by adding the overlapped actors to an array and then looping t ...

Android sessions do not appear in Session Frontend

UE - Platform - Mobile - Aug 29, 2016

Projects are failing when Content/Pak folders are added outside of the saved folder

UE - Platform - Mobile - Oct 13, 2016

When the Content/Pak file is outside of the Saved Folder, it'll crash with an internationalization error. But when the Content/Pak file is inside of the Saved folder, there is not a crash. ...