Hot Reload Temporary dlls and pdbs Aren't Getting Cleaned Up Between Runs

UE - Foundation - Cpp Tools - Hot Reload - Dec 14, 2020

I'm seeing it as an issue in at least 4.25.4, maybe prior.   I'll update after checking 4.24. From the tests at my desk I could see that the HotReload.State file that DeleteTemporaryFiles (HotReloa ...

Datasmith Export Bug with Camera Target

UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 7, 2025

Potential bug was encountered when exporting vray cameras and their targets that have been path-constraint to corresponding splines. The resulting export file shows no camera targets; hence, missing ...

interaction with 3D widgets are not possible when moving the pivot point

UE - Editor - UI Systems - Aug 17, 2015

If the user moves the pivot point for the 3D widget component the widget can no longer interact with. ...

Check box takes input when set to Self Hit Test Invisible

UE - Editor - UI Systems - Jun 9, 2017

The Self Hit Test Invisible is not working as intended for the Check Box component in 4.16. The check is still taking in an input. This issue does not occur when using the "Hit Test Invisible" optio ...

OSX editor fails to run on "older" hardware

at first, a "OpenGL Not Supported" message box appears and then the Editor instantly crashes after the "OK" button has been pressed. I tried again, but this time, passing in the "-opengl" flag. it ...

A packaged game that contains a plugin with a custom struct and function using that struct will crash on launch.

UE - Foundation - Cpp Tools - Plugin System - Sep 9, 2015

If a project is packaged with a plugin that contains a custom struct and a function that takes that struct as a parameter, the game will crash when the executable is run. [Link Removed] ...

Sphere Reflection Captures overridden by Skylight

UE - Graphics Features - Jun 10, 2025

When using non-Lumen lighting and Screenspace reflections off, the skylight location overrides the Reflection Capture location during Build Reflections. This results in a Reflection Capture taken fr ...

Event Graph 'Begin Overlap' event fires while not in Simulate or PIE

UE - Gameplay - Components - Feb 20, 2017

Event Graph 'Begin Overlap' event fires while not in Simulate or PIE. It seems to somehow be linked to the components. If the actor contains a Box Collision component and either a Static Mesh comp ...

Custom Launch Profiles lose selected projects after first re-open of the editor

Tools - Jan 2, 2020

Selected project resets in a custom project launcher profile only after the first time restarting the editor.  Tested: 4.24.1 CL#10757647 4.25 CL#10873002 ...

Remove reference to editor assets in cooked build from landscape visibility layer

UE - LD & Modeling - Terrain - Landscape - May 21, 2020

As soon as the visibility tool is used, we're adding references to the  "/Engine/EditorLandscapeResources/DataLayer" asset from landscape components. If the user decides to cook without editor data ...