User is able to merge a single actor

User is able to merge a single actor using the Merge Actor tool.

This is a regression as you could not merge a single actor in 4.12. Not sure if this was an intended change or not.

Occurring in 4.13
Not occurring in 4.12

1. Open any project in the editor
2. Drag a static mesh into the level
3. Open the Merge Actors window by going to Window->Developer Tools->Merge Actors
4. Select only the static mesh you dragged into the level

Result: User is able to Merge Actor with only a single actor selected

Expected: Only able to merge actors with two or more actors selected

Fix UE-51650

I am not able to find world outliner how to enable it?

Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows

When I open UE4 4.24.3 it appears that. Does anyone know how to solve?

Delay nodes occasionally don't fire the "Completed" output in a nativized build

I can't open my map from the editor.

What method is used to fill polygonal regions when drawing spline mesh at run time?

How can i modify the param name in EQS node

How does TextureRenderTarget2D get TArray<uint8> type data?

Bonjour j'ai un petit problème c'est que je ne vois plus l'onglet "scability" pour changer les graphismes de uefn et j'ai pas trouvé l'option pour le faire revenir ?