Since the installation of the public beta V01.01.30.00 on the H2D, BambuSuite cannot find the printer and so it cannot start making things.
I had to roll back to the previous stable version 01.01.04.00 to get things back.
@Bambulab : when do you plan to release a new version of BambuStudio ?
In github you have the new beta with the new suported firmware for the H2D its the slicer version 2.2