Why are my foliage trees floating?

Development World Creation
, ,
1

Hey there,

Look at the screenshots below:

300675-phoenix-realm-unreal-editor-26-4-2020-10-15-35-pm.jpg
300675-phoenix-realm-unreal-editor-26-4-2020-10-15-35-pm.jpg1920×1039 456 KB

The foliage properties I have changed for this foliage are:

  1. Random Yaw Disabled(This to enable tree to be placed upright regardless of terrain angle)
  2. Align to Normal Enabled(Actually by default but I just want to tell that normal alignment was enabled)

And other not so related properties:
3. Turned Off Shadow Casting(I know in the picture it wasn’t turned off but before uploading this post I turned it off)
4. Changed Collision Preset to “Block All”

So, the million-dollar question: Why is this happening? What should I edit in foliage properties or do to resolve this? The trees get placed quite normally on flat ground but when on slopes, it gets gradually worse the steeper it goes. And for your information, my terrain(landscape) is quite hilly. Please help me.