Unreal Engine Issues

Blueprint function-local variable properties don't copy metadata from the source FBPVariableDescription

FKismetCompilerContext::CreateUserDefinedLocalVariableForFunction() does not copy the metadata from the source FBPVariableDescription entry. Class variables work because there is code for that in FK ...

Blocking volumes moved into sublevels from the persistent level do not correctly function in standalone game

If a blocking volume is created in the persistent level and then moved to a sublevel, it will no longer correctly block objects in standalone game. ...

The Ability to Import Compatible Assets While Maintaining Original Folder Structure No Longer Functioning

Before UE4.12 A user could drag a folder and its sub-directories from the Finder in Windows into the Content Browser and it would keep the folder structures. Now, doing the same results in the asset ...

Mouse functionality breaks on Linux when game is full screen on multi-monitor setup

When the game window is maximized on any monitor other than the left most monitor, the mouse will not interact with the game window. ...

"Always Center Window to Screen" No Longer Functioning in New Editor Window (PIE)

Regression: In UE4.10, the border that now occurs around New Editor Window causes window to extend beyond native screen resolution designated in Editor Preferences causing the window to 1) Not be ce ...

Editor Crashes On Startup After Enabling Light Propagation Volume (LPV) With Forward Shading

After enabling Forward Shading that project can no longer operate while "r.LightPropagationVolume = 1" since it will crash immediately. ...

UnLit materials are not masked out on mobile deferred lighting pass with depth prepass enabled

Iris - Function descriptors will prevent protocols from being marked as fully push based

Backwards-compatibility broken for the CDOs of Python-generated Unreal Types because of missing redirectors

Previously, all Unreal Types generated by python scripts would be created inside package "/Engine/PythonTypes". This was changed by [CL 32478991 in ue5-main branch], which meant to "remove the restr ...

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 ...