Bug? With InteractivePreviewGUI on Unity2019

Hi there,

I have an asset that uses an InteractivePreviewGUI to show an animation. I use the exact same code in a EditorWindow and in a CustomInspector and since now it worked without problems.

But in Unity2019 it's behaviour is... weird. Here some screenshots.



On the left is working as intended on a EditorWindow, but when using the PreviewGUI on the CustomInspector the render is missplaced. It's weird because I detect mouse events within the rect and they work perfectly fine.



Also, if I detach de preview window it works fine. It's only when its attached.

My code is something like this:

Code (CSharp):

1.  
2. public override void OnInteractivePreviewGUI(Rect r, GUIStyle background)
3. {
4.         Handles.DrawCamera(r, pc);
5. }
6.  

Any hints to solve this?

Thanks.