LIVE: Multiplying an FQuat*FQuat via pass-by-value crashes editor on open

UE - Foundation - Core - Nov 5, 2014

If a function takes in an FQuat value and then multiplies it by an FQuat, the project will build properly but then crash when trying to launch the project in the editor. Example project available b ...

Comment boxes no longer allow pinning/unpinning of comment bubbles

UE - Gameplay - Blueprint - Jun 24, 2015

Comment bubbles above comment boxes no longer have an option to pin/unpin comment bubbles. This functionality allowed users to choose whether or not to show the comment bubble, which was useful for ...

UTF-16 characters return incorrectly from StringToBytes/BytesToString conversion

UE - Foundation - Core - Jul 28, 2016

When a UTF-16 character (™ for example) is passed into a StringToBytes() function and then returned via BytesToString, the returned character does not match (in the case of ™, a double quotes is ret ...

Paper2D Code Template character uses code class in the level

Docs - Samples - Jul 27, 2016

In every other code template, the standard setup is to have the code classes be in the template and have all the functionality in them code-wise, but then have a blueprint child setup the assets it ...

Tick fires in PlayerController BP in Editor

UE - Gameplay - Blueprint - Oct 6, 2016

If a blueprint has any functionality on tick, the tick event will fire when a blueprint is restored within the editor after closing and reopening a project. Regression (no) issue (does) occur in 4 ...

DrawMaterialSimple() disrupts widgets being drawn to the screen depending on widget hierarchy

Tools - Aug 28, 2015

Calling the HUD::DrawMaterialSimple() function may cause blueprint widget elements to not be drawn on screen depending on the hierarchy of the widget. Google Drive link to Project: [Link Removed] ...

Wireframe box does not appear when adding blueprint of custom volume class to the viewport

Tools - Aug 2, 2017

No volume appears when adding a blueprint of a custom volume class to the viewport. Adding an instance of the custom class directly does show the box, but additional functionality cannot be added v ...

Slomo command has no effect when Run Dedicated Server is set

UE - Gameplay - Aug 18, 2017

Using the slomo # command when Run Dedicated Server is set has no effect. Command still functions when this checkbox is set to false. Regression: No, same behavior occurs in 4.16.3 ...

Set Hardware Cursor doesn't refresh when clicking and holding in PIE when dragging out and back in

UE - Editor - UI Systems - Slate - Nov 10, 2017

The SetHardwareCursor function sometimes doesn't update when clicking and holding the left mouse button on a widget component, like a button, and causes the cursor to default back to its normal icon ...

Disabling "Skip Unneeded Dependency Compilation" clears spline points on component compile

UE - Gameplay - Blueprint Compiler - Apr 5, 2018

Spline points are lost when compiling BP component. Component is used in PlayerCharacter. Spline Actor Casts to PlayerCharacter and calls a function on this component. Workaround: Open BP_SplineAc ...