Unreal Engine Issues
Unreal Engine Issues
Scrolling the mouse wheel slowly on Mac does not have any effect in the editor
UE - Platform - Apple - Jan 19, 2017REGRESSION No, occurs in 4.14.3 On Mac, scrolling slowly (one or two notches) does not have any affect in editor, whereas on the Windows, this has full effect. This was seen in editor (with scroll ...
Filename issue for Stick Figure Project 2D project
Docs - Samples - May 2, 2017There is an issue packaging the project Unreal Stick Figure 2D project that is available in the learning tab. The project cannot package from the outset because of a couple of files that uses space ...
Cannot paste text into Text Box in HTML5 build
UE - Platform - Mobile - Sep 14, 2017With HTML 5 Packages you cannot use the windows clipboard to paste things into the text box. This issue does not occur with other builds of the project. This issue does not appear to be a regression ...
UI transparency breaks when dragging a game window around the screen
UE - Editor - UI Systems - Nov 20, 2017When a game window launched from UE is moved around the screen, any transparent elements on the screen will turn fully opaque. The loss of transparency also causes some text to become blurry. This d ...
"No value will be returned by reference" when calling Event Dispatcher with an Array
UE - Gameplay - Aug 14, 2018When creating an Event Dispatcher that sends an array, a blue Note shows up on the bottom of the Call node stating that "No value will be returned by reference". This is a similar issue to [Link Rem ...
Crash on Linux and Windows with Vulkan when adding Atmospheric Fog to a Level
UE - Graphics Features - Dec 5, 2018Adding an instance of Atmospheric Fog to a Level causes the Editor to crash on both Linux and Windows when using Vulkan. There is a different callstack when SteamVR is enabled on Linux which is also ...
Merging actors with two-sided materials produces incorrect results
UE - World Creation - Worldbuilding Tools - Merge Actor - Feb 24, 2020Merging two actors using a two-sided material produce incorrect results. Notes: Tested with "Allow two-sided material" on and off, the same result is produced. The same issue can be seen when ge ...
Color picker does not change the color of a Vector Parameter in a Material Instance until the mouse button is released
UE - Graphics Features - Mar 11, 2020This is a regression from 4.23.1 (CL-9631420). The color picker does not update in realtime anymore when holding down the left-mouse button. Only on mouse-release does it update. This was reported ...
Exporting a UE4 Animation into Maya results in wrong skin weight
UE - Editor - Content Pipeline - Datasmith - Importer - Apr 21, 2020UE4 Mannequin animations are not exporting/importing correctly into Maya. The right hand is bulkier and the left shoulder is dislocated. This was reported and tested in 4.23.1 (CL-9631420). this w ...
Key input by Sequencer is missing in FBX output of parent-child actors
UE - Anim - Sequencer - Nov 15, 2021This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A) ┗Actor(B) ┗Actor(C) This is how the attachments are registered, and the ke ...