[4.12 Bug] 'Construct Object from Class' blueprint-node in combination with structs

Development Programming & Scripting
1

Build Type: Binary from the Unreal Launcher

Build version: Version: 4.12.5-3039270

Detailed description of the issue:
The bug appeared in my custom project and is reproducable in a new clean project.
Please look at the attached image.
When using the Construct Object from Class-Node to initialize a Object with a struct-variable that has expose on spawn set, there appears a bug when splitting this struct. The value is not set. The variable gets assigned the default values.
When i connect the struct pin as a whole (not split), then it works fine.

100614-img.jpg
100614-img.jpg1462×471 171 KB

Repro Steps

  1. Create a struct asset (STR) and add a variable
  2. Create a blueprint (ObjBP) with object as parent class
  3. add a variable of type STR to ObjBP
  4. Create an actor blueprint (ActBP)
  5. Add construct object from class node to ActBP (choose ObjBP as class, self as outer)
  6. split the struct pin on the node and enter some value
  7. print the value of the struct after the object creation, it will be the default value instead of what you assigned

The Issue has so far been 100% reproducable.

2

Hi Noowoon,

I was able to reproduce this on my end and have entered a bug report, UE-33924, to be assessed by the development staff.