I have updated to the latest the Surface Laptop and Surface dock drives quite a while ago. This did not help. And even after some research I could not find any vendor drivers for my screens.
I currently can minimize the problems a bit by connecting to Surface Dock after login in to Windows. In this case most of the time the screens get connected. Downside is other graphic problems appearing (e.g. giant task bar entries). These can only be repaired by signing out and signing in again:
When connecting Surface dock after login in to windows:
After sign out /sign in:
Furthermore even when using this technique I get ghost monitors (see graphic below, Number 3 does not exist):
I'll give this problem one or two more month. If Microsoft will not release any drivers to fix these problems I'll return the Surface and switch to a Lenovo Notebook instead. This would than be the first and last time to buy a Microsoft Notebook.