Replacing blueprint assets causes editor to crash

UE - Gameplay - Blueprint - Jun 1, 2015

When attempting to replace references of one blueprint with another a number of error message windows pop up ([Link Removed]) and the editor will crash. This is a regression since it was working in ...

While renaming a variable in the Details panel, clicking another variable will rename it instead

UE - Gameplay - Blueprint - Feb 11, 2015

While renaming a variable in the Details panel, clicking another variable will rename it instead. ...

Crash Occurs When Clicking Off of Color Picker in Data Table

Tools - Jun 29, 2016

When using an FLinearColor variable in a data table and editing it using the color picker, clicking anywhere off of the color picker window will cause the editor to crash. Error Message: Assertio ...

[Audio Capture] - Editor crashes when activating an Audio Capture component when there are no active input or output devices avilable

UE - Audio - Aug 12, 2022

If a device has no available input or output devices, activating an Audio Capture component will cause the device to crash. Occurs in Editor and Runtime. Assertion failed: NumTotalFrames > 0 [File:E ...

Using Show Mouse Cursor and Ejecting Prevents Actors from Being Moved

Tools - Mar 31, 2016

When you have the mouse cursor set to show in game, if you use shift+f1 to unlock the mouse, eject, and then attempt to click and move an actor using the transform gizmo, you are unable to do so. S ...

Decal Fade Out does not cause decal to fade, destroys decal at end of fade time

UE - Graphics Features - Jul 27, 2016

Decal Fade Out does not cause decal to fade as expected. Instead, after the delay and fade time, the actor is destroyed with no noticeable fade during this time period. ...

MAC: Drop Down Menus Continuously Flicker (In Certain Conditions)

UE - Editor - UI Systems - Slate - Nov 4, 2015

Shown in the Behaviour Tree Graph, if the Dropdown menu's length exceeds the Behavior Tree Graph window, the menu will try to offset it's position in order to display all information and will flicke ...

Set Game Paused returns incorrect value when the game is already paused

UE - Gameplay - Jan 12, 2017

Set Game Paused returns incorrect value when the game is already paused. According to the tooltip on the Return Value (reads: Whether the game was successfully set paused/unpaused) it is expected t ...

Generation of sub-level LOD doesn't work when forward rendering is used

UE - World Creation - Worldbuilding Tools - World Composition - Mar 9, 2020

When using WorldComposition and building LOD for a sublevel, textures of generated Landscape LOD are not correct when the project has forward rendering enabled. The issue is that the material gener ...

Enum to string conversion has different results in PIE vs Cooked builds

UE - Gameplay - Blueprint Runtime - Aug 17, 2021

This is because the metadata is editor only and will be stripped in a cooked build. We should make the behavior of the to string function consistent between PIE and a cooked build. ...