Inconsistent mobility when converting selected actors to a blueprint

UE - Gameplay - Blueprint - Jan 6, 2015

Noticed when replying to a user on the forums (link included) When using the "Convert to Class Blueprint" feature in the level editor to create a blueprint from the selected actors, the created blu ...

Adding Multiple Scene Components to an Actor Causes Parenting Errors

UE - Gameplay - Components - Jan 5, 2016

Attempting to add multiple instances of a Scene Component that was created in code and contains a component such as a Box Collider causes the Box Colliders of each Scene Component to be parented to ...

Log list console command shows duplicated category entries

UE - Foundation - Core - Oct 19, 2016

"log list" console command outputs log categories - a licensee reported they see duplicated category entries in 4.13. (e.g. logFileCache, logHMD, logHUD) Actually 4.11 and 4.12 had duplicated entri ...

Dragging to Change Variable Attached to Empty Reroute Node Causes Freeze

UE - Gameplay - Blueprint - Apr 25, 2016

Attempting to change a variable that is connected to a node and an empty reroute node by dragging a reference on top of the existing reference causes the editor to freeze. The user provided a vide ...

Smoothing landscape removes landscape collision in smoothed areas

UE - LD & Modeling - Terrain - Landscape - Apr 27, 2016

Smoothing user's landscape breaks collision, causing player to fall through the ground at points that have been smoothed. Resampling landscape fixes the error until smooth tool is used again. Regr ...

"LogModuleManager:Warning: ModuleManager: Module" warnings in log on blank packaged project

UE - AI - May 6, 2016

"LogModuleManager:Warning: ModuleManager: Module" warnings in log on blank packaged project Regression: Warnings to do not occur in 4.10.4 User Description: Since the move to 4.11, we are seing a ...

Set World Location Not Working on Skeletal Meshes with Simulate Physics Enabled

UE - Gameplay - Mar 3, 2016

When a skeletal mesh is set to simulate physics, using the Set World Location node to set the world location of the mesh does not seem to be working. Turning simulate physics off causes the mesh to ...

Cannot Add Elements to AIPerceptionStimuliSource's Register as Source on an Instance in the Level

UE - AI - Jun 7, 2016

When attempting to add an element to the Register as Source for Senses on an instance of a blueprint in the level, the + button has no effect. Clicking the button does not add an element. This work ...

[Input] Switching levels destroys auto-created Input Component which breaks emitUIInteraction

PixelStreaming - Feb 12, 2019

We auto-create a PixelStreamingInputComponent which handles the input coming from JavaScript's emitUIInteraction. This works in a UE4 app with a single level, but it seems that if you change levels ...

Blueprint nativization fails using a map type argument as Expose on Spawn

UE - Gameplay - Blueprint - Oct 2, 2020

Here's a sample blueprint [Image Removed] The lack of implementation FCustomThunkTemplates::SetMapPropertyByName causes this error.#include "Kismet/BlueprintMapLibrary.h"// The fix needs this head ...