Unreal Engine Issues

When always loading last project, project logs are saved to the engine folder

Checked on the Binary version //UE4/Release-4.25 stream CL 13942748 Version 4.25.3, logs are also saved into Engine folder: \AppData\Local\UnrealEngine\4.25\Saved\Logs instead of a Project folderIf a ...

Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work

Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work The System component appears to only use the default value set in the System.  This issue does no ...

Fix primitive uniform buffer validation.

GPUScene primitive validation is currently busted and asserts. It looks like there are two problems: 1) NaN's in the entries can cause comparison issues, so a MemCmp would be better. 2) There's a ...

Changing blueprint default values inside arrays only updates loaded child blueprints

The rules for delta serialization in UE4 are complicated, and the editor tries to hide them from you, which works 90% of the time but can lead to confusion and data loss in other situations. In the ...

Output warning log message for loading source texture of paper2D in Editor.

Outputs a warning log for loading source texture when Papaer2D is loaded in Editor.  This may be due to a conflict post load of Paper2D and load source texture.  The warning log is output only in  ...

Blueprint classes are listed in Object pickers, but will not work as expected

Because of the way blueprints are implemented, the "Blueprint Class" asset actually points to the editor-only UBlueprint object. Because of this, all blueprint classes will show up as options for ge ...

Pasted variable's default value is not preserved if you compile between undo and redo

If the user compiles the blueprint between undoing and redoing the pasting of a variable, the variable's default value is not retained. ...

Core Class Redirect doesn't work when converting from a C++ class to a BP

The Export map will properly be updated but the creation of the import will fail with SourceIndex == INDEX_NONE From MarcA:  I'm guessing the import source index is always none for native classe ...

Renamed material parameters in layer functions don't propagate to MIs

Second controller input doesn't work in fullscreen mode on PIE.

When two controllers connected, player2 input is disabled in full screen mode in PIE. This doesn't appear to be in focus. If seeing the any focusing widget, player1 focused on SViewport, but player ...