Activating Prefab changes hierarchy

Unity Engine
1

I got a prefab which is inactive.
In this prefab I got a GameObject that jumps to the root hierarchy as soon as I activate my prefab.

How to prevent this, and what can cause it?

2

Like a child of the prefab that sets its parent to null, in a script? Something like that?

3

No is like tis:

–Main Camera

–Puzzle
-Puzzle Controller
-Light

Puzzle is inactive since the level picks which prefab should be active.
Puzzle object has a camera.
As soon as the Puzzle gameobject is activated the situation becomes:

–Main Camera
–Puzzle Controller
–Puzzle
-Light

4

Something, either itself or something else, must be setting the parent. Find in Files for SetParent() and make sure you’re getting accurate results, as passing a null value will deparent it from everything.

5

There is no SetParent() (unfortunatly)

GameObject rootObj = GameObject.Find("PuzzleRoot");
        GameObject camera = GameObject.Find ("Main Camera");
        GameObject MyJigsaw = rootObj.transform.Find ("JigsawPuzzleJP").gameObject;
        GameObject MyMP = rootObj.transform.Find ("JigsawPuzzleMP").gameObject;
        GameObject MyPP = rootObj.transform.Find ("JigsawPuzzlePP").gameObject;
        GameObject MySP = rootObj.transform.Find ("JigsawPuzzleSP").gameObject;
        GameObject PuzzleP;
        Texture2D LImage;
        switch(_level.PuzzleType)
        {
        case "Jigsaw":
            Destroy (MyMP);
            Destroy (MyPP);
            Destroy (MySP);

            camera.SetActive (false);
            MyJigsaw.SetActive (true);

as you see in original structure I forgot to mention that the actual prefab is under PuzzleRoot
like so
—PuzzleRoot
–JigsawPuzzleJP
-PuzzleP

6

I dont know how to set the PuzzleP object to MyJigsaw as parent manually since I assume that might solve it…

7

tried reversing the process by making the active components inactive after I found them with GameObjects.Find
that does not make any change…

getting really confused now