Changes in Blueprint Properties not Updated in placed Instance

UE - Gameplay - Blueprint - May 16, 2016

When changing some properties in a Blueprint, the changes are not reflected in placed instances of the Blueprint. I've included repro steps from the licensee who reported this. I verified these step ...

Running Automation Test for Directory Watcher Causes the Editor to Crash

UE - Automation Test - Nov 2, 2015

Running an automation test for Directory Watcher for Plugins causes the editor to crash on the Simple Modify step. Occurs only in 4.10 Preview 3. Regression: This does not occur in 4.9.2, but occu ...

AttachToComponent replication snapping to position instead of keeping relative location

UE - Networking - Feb 15, 2019

When using AttachToComponent at runtime, the attachment does not replicate properly for some clients. The relative transform/rotation is not maintained. The user who reported this issue mentioned th ...

No scroll bar is created when the Collision Preset section of Project Settings is expanded

Tools - Mar 15, 2015

No scroll bar is created when the Collision Preset section of Project Settings is expanded. Clicking an element in the Preset section does not add the scroll bar. Collapsing the section and re-exp ...

Wires cannot be Ctrl + dragged off reroute nodes

UE - Gameplay - Blueprint - May 19, 2015

Wires cannot be Ctrl + dragged off reroute nodes. Ctrl + clicking and dragging the wire from a pin on other nodes acts the same as Ctrl + click-dragging from the pin itself, but on Reroute nodes thi ...

SpeedTree Billboards rendering with Incorrect Material

Tools - Dec 12, 2016

Material Billboards for SpeedTree assets are rendering with the incorrect material. This can occur to any pre-existing project, or a new project with imported SpeedTree content using both 3d LODs an ...

Material preview artifacts

UE - Graphics Features - Apr 4, 2016

Import the attached speedtree asset. The material view will be glitched. Disabling the world position offset input and reenabling seems to help. This issue did not occur in 4.10.4 and does not occu ...

Shader compilation errors when packaging for iOS after disabling force full precision

UE - Platform - Mobile - May 29, 2024

User report: I want to run iOS shaders with half precision floats as I do on Android. If I disable Force 32 bits Floating Point Precision, there are unfortunately a bunch of shader compilation error ...

iOS movie become laggy and crashes when played in iPhone 6/6s.

UE - Platform - Mobile - Feb 24, 2017

Movie play in iOS is laggy and crashes in some movie. This issue seems to be happening when the movie is played in umg widget. Tested in 4.14.3 4.15 Dev_Mobile Latest as of 2/24 Original UDN post ...

[CrashReport] UE4Editor_CoreUObject!TFastReferenceCollector<1,FGCReferenceProcessor<1>,FGCCollector<1>,FGCArrayPool,0>::ProcessObjectArray()

UE - Foundation - Core - UObject - Jul 19, 2017

This is a common crash affecting users in 4.16. Over 100 users have been affected, although they have not provided additional information. Source Context 469 TokenStreamIndex++; 47 ...