Unreal Engine Issues
Unreal Engine Issues
Call In Editor functions not working in blueprints
UE - Editor - Developer Usability - Dec 19, 2025Context When selecting a component on an actor, any CallInEditor functions on the component's class appear as buttons in the details panel. Problem The CallInEditor functions don't execute in Blu ...
Marking a Blueprint as Deprecated Causes Existing Instances to be Removed on Level Load
UE - Gameplay - Blueprint - Oct 13, 2016Enabling the 'Deprecated' option in a blueprint's Class Settings causes all existing instances of it to be deleting upon loading any levels that contain the blueprint. Found in 4.13.1. Reproduced i ...
Blueprint compile fails after changing the default values of a struct that is part of another struct that makes up a Data Table that is used within the Blueprint.
UE - Gameplay - Blueprint - Dec 23, 2016Changing the default value of a struct that is included as an array in another struct can prevent any Blueprints that use a DataTable made from the second struct from compiling. It appears to be a p ...
[CrashReport] Assertion failed - FAssetEditorManager::OpenEditorForAsset()
UE - Anim - Sequencer - Jul 20, 2017This is a common crash affecting users in 4.16. Unfortunately they have not provided any additional information ...
Crash when jumping to location of referenced missing asset in a blueprint from Message Log window
Tools - Aug 29, 2016I created a static mesh blueprint and set the mesh asset to a mesh in my project. Then I closed the project, deleted the mesh .uasset, reopened the project. When opening the blueprint, there are w ...
"Create New Asset" section for selecting an image appears directly under the mouse
UE - Editor - UI Systems - Slate - Sep 12, 2016The Create New Asset Section for applying an image to a brush is directly under the mouse after clicking on the dropdown. If the user simply clicks (and does not hold down the mouse button) they wil ...
Unable to click on Building blocks in Strategy Game HTML5
UE - Platform - Mobile - Nov 8, 2016Other button clicks works on the game. I am able to move the camera, click on the mini map, collect gold, and pause the game. For some reason I cannot click on the building blocks. Cannot check on ...
Oculus controllers are hidden in Collab VR template
UE - Platform - XR - Dec 2, 2019Oculus Rift motion controllers aren't visible and don't respond to button input from the controllers in Collab VR. Found in 4.23.1 CL#9631420 Reproduced in 4.24 Preview 4 CL#10387632, 4.25 Main CL# ...
Unable to move some blueprints that have breakpoints
UE - Gameplay - Blueprint Editor - Oct 21, 2020I was attempting to do some reorganization and received a cryptic error when one of the assets could not be saved. Everything compiled cleanly and could be saved, just not moved. Eventually I figur ...
Combobox navigation does not work consistently
UE - Editor - UI Systems - Jan 22, 2021Navigation on combo box widgets will sometimes fail until the combo box close button is pressed, despite it not being open. This appears to be related to accessibility features added in CL# 13258546 ...