Unreal Engine Issues

Full screen mode when using a laptop with Optimus ignores the gama setting

When using full-screen mode on a optimus laptop the gama that is set for the system appears to be ignored and uses the default setting, even if it has been adjusted in Windows display calibration se ...

Access None with Event Hit to get Physical Material type

When trying to get a hit result from physical material using a event hit node there will be a access none error caused in the log. This is the exact error presented: Error Accessed None 'CallFunc_B ...

SetActorLocation does not affect WheeledVehicles

When using SetActorPosition() on a WheeledVehicle, it does not affect it in any way. This worked previously in 4.8. This has also been tested in main CL# 2698791 This may be related with: https:// ...

Opening Floating Editor Window Locks Camera to Upward Position

Using the shortcut "Ctrl + E" to open the static mesh editor in it's own floating window results in the camera locking in the upward position in the Main Viewport (*not* the viewport of the Static M ...

Crash when Previewing specific LODs within Static Mesh Editor at certain Screen Resolutions

A crash occurs when attempting to preview specific LODs when the monitor resolution forces the menu to be expanded when selecting an LOD. This Jira was created from CrashReports submitted by the pu ...

Splash Screen disappears too quickly on Mobile resulting in a long black screen before game starts

A user has reported that the Splash screen for Mobile games does not last as long as it did in previous versions, resulting a longer black screen before the initial map loads. Regression?: Yes This ...

TVOS - Adding Game Center image assets causes build script error

"We are trying to add required Game Center assets to our Apple TV project. We are using the source code version of UE4. It seems that the editor UI does not support adding the Game Center leaderboar ...

Volumetric Lightmaps Persist When Opening Different Level

When moving between levels with built lighting volumetric light maps persists between levels. Workaround: Load the same level twice. Found in 4.24.2 CL#11100242 Reproduced in 4.26 Main CL#11574810 ...

Can't connect nor send packet via TCP socket in iOS

TCP Socket messaging in iOS seems not working.  ...

Lumen Software Raytracing has big lighting difference comparing to Hardware raytracing