The World Outliner will only show one Child Actor on a Blueprint that has multiple Child Actors in its Components tab. Note that all Child Actor Components added via the Construction Script will display as intended in the World Outliner.
Reproduced in Main (//depot/UE4/Promotable-CL-2507843)
1. Open any project
2. Create a new Actor Blueprint
3. Create a second Actor Blueprint
4. In the first BP, add a Child Actor in the Components tab
5. Assign the second Actor BP to the Child Actor
6. Drop the first BP in the level
7. Note that the Actor BP correctly displays a Child Actor in the World Outliner
8. Add a second Child Actor component in the Components tab
9. Compile
Result:
The World Outliner does not show the second Child Actor component.
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
Delay nodes occasionally don't fire the "Completed" output in a nativized build
An error occurred while trying to generate project files !?
Installer 4.10 failed with error code R-1603
How can i modify the param name in EQS node
How to achieve HLSL Multiple Render Target in Material blueprints?
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-13722 in the post.