Unreal Engine Issues
Unreal Engine Issues
App does not resume after locking and unlocking on iOS
Tools - Jun 21, 2016Locking and unlocking the device does not allow the app to resume where it was left off. The app is running in the background but when you double tap home button and select it, the app will restart ...
iOS ReplayKit isn't working in UE5.1+
UE - Platform - Apple - Apr 21, 2023In 4.27 & 5.0 when you press the in-app screen recorder button it would pop-up a msg about the user giving permission to allow the screen recording and then would start the recorder and save the mov ...
Hot reload can no longer be performed after adding an empty class to a Blueprint-only project
UE - Foundation - Core - Feb 7, 2019Adding an empty code class to a Blueprint-only project prevents the project from being able to perform any hot reloads. When clicking the Compile button in the Editor, a warning is added to the log ...
Issue with r.SkyAtmosphere.TransmittanceLUT.UseSmallFormat
UE - Rendering - Features - Mar 30, 2026When "r.SkyAtmosphere.TransmittanceLUT.UseSmallFormat=1", some values for the Sky Atmosphere at some directional light angles can lead to the sun disk being cut off, and taking on a chord shape. A ...
Procedural Foliage Volume: Simulate() function doesn't work in Blue Print
UE - World Creation - Worldbuilding Tools - Foliage - May 10, 2019Procedural Foliage Volumes can be resimulated by clicking the Resimulate button. But they can't be resimulated from Blueprints, even if there is a Simulate() function that can be executed. Found in ...
Crash in Anim Budget Allocator when adding fifth budgeted component to the scene in packaged builds when Niagara is enabled
OLD - Anim - Apr 9, 2020The setup is fairly simple: Each time the button is pressed, we spawn an actor with a USkeletalMeshComponentBudgeted component whose skeletal mesh is DefaultSkeletalMesh. When the fifth actor is ad ...
Cannot mark asset folders in plugin to always be cooked
Tools - Jun 14, 2017No way to mark asset folders in plugin to always be cooked. Using the browse-for-folder button will reject them for not being in the project's content folder. It looks like the code assumes them to ...
Removing created event from level BP crashes editor if event is tied to object in level
UE - Gameplay - Blueprint - Feb 21, 2015UPDATE: 2/23/2015 Crash is limited to 4.6.1, does not occur in 4.7 Preview 8 or later builds (CL#2448202). ========================================================== Editor crashes if an event is ...
Triggering a HotReload Compile when Start up is Manual can result in an Editor crash: Assertion failed: GIsHotReload, Trying to recreate class outside of hot reload!
UE - Foundation - Cpp Tools - Hot Reload - Jun 30, 2019Torrigered when hotreload is performed in a case where code referencing to dll. Crash when restarting from VisualStudio. It didn’t see in 4.21. Workaround: Delete the Intermediate folder and e ...
Editor crashed on opening level blueprint
UE - Gameplay - Apr 10, 2017I've been unable to reproduce this issue. Once only occurrence so far. I did some other things inside the level in between these steps like pressing play and copying, rotating, deleting objects in ...