Robin crashes P3D v4

  • Hi, I am new here,having installed the Robin DR400 yesterday. Installing worked fine and I can load the Robin into P3d v4. I even see the Cockpit view and here the engine. But when I try to move the window to adapt it for my three screens, the P3d crashes after a few seconds. It just needs a move of the window for a millimeter (Cursor on the horizontal bar and pulling) to trigger the crash. moving and adapting windows is usually no problem with other addons.
    Any suggestions?
    Thanks in advance