Editor crashes when opening several marketplace assets - Assertion failed: !HasAnyFlags

UE - Gameplay - Blueprint - Jun 22, 2016

Editor crashes while attempting to open several marketplace assets. Allar's Generic Shooter Defuse Studios RTS Template JCInventory Frequency: 5/5 Regression (yes) issue (does not) occur in 4.11 ...

Get Class Defaults node disconnects output pins when project upgraded from 4.11 to 4.12

UE - Gameplay - Blueprint - Jun 7, 2016

Upgrading a project from 4.11 to 4.12 causes Class Default nodes to disconnect their output pins from other nodes. If the node is reconnected and saved, it will disconnect again when the project is ...

Debug symbols are required for the Shipping packaging configuration

Tools - Feb 11, 2016

If the engine is installed without the Debug Symbols, packaging for Shipping will fail due to the missing files. While I believe this is expected for Development, it shouldn't occur with shipping. ...

Crash When Executing RestartLevel When GameInstance Contains a Reference to an Actor in a Streamed Level That is Loaded But Not Visible

UE - Gameplay - Nov 29, 2016

The editor is crashing when attempting to use the RestartLevel command if the GameInstance contains a reference to an actor that is in a streaming level. The streaming level must be loaded, but not ...

Local Variable loses value after reference moves file location

UE - Gameplay - Blueprint - May 23, 2017

Local Variable loses value after reference moves file locations. This does not just affect construction scripts, following these steps with a function instead produced the same result. This issue do ...

Physics Handle - Angular Damping option has an incorrect tooltip

UE - Simulation - Physics - Sep 1, 2017

there is a wrong tooltip for Angular Damping option in the details panel for the Physics Handle, the tooltip describes it as Angular Stiffness. This issue is not a regression Versions Tested: 4.15. ...

No mouse decorator when dragging Event Dispatcher from My Blueprint panel

UE - Gameplay - Blueprint - May 20, 2015

Currently there is no mouse decorator when dragging event dispatchers out of the My Blueprints panel in the Blueprint editor. This contradicts the functionality of drag-and-dropping variables, func ...

A crash in editor will result after swapping inherited SCS component names at the parent class level before loading a child class that overrides them.

UE - Gameplay - Blueprint - Oct 26, 2018

This is an editor-only crash that's due to stack overflow/infinite recursion in UInheritableComponentHandler::FixComponentTemplateName(). We are recursively trying to rename other inherited componen ...

Clothing Data paint doesn't effect visible mesh

UE - Simulation - Physics - Jan 7, 2020

Skeletal mesh sections with cloth should have their visible mesh match their simulated mesh and this should be effected by painted values. Any vertices left unpainted(at 0) after the initial paint, ...

Single sided complex collision mesh collision blocks character movement from backside

UE - Runtime - Simulation - Nov 17, 2023

Commenting out the branch in FTriangleMeshSweepVisitor::VisitSweep is a work-around.if (CullsBackFaceSweepsCode != 0) { if (VectorMaskBits(IsBackFace)) { // Don't cull the back face ...