Reproducible. If a .c2d file is being opened by double-clicking it in File Explorer (Windows 10), the display doesn’t properly initializes itself (my laptop has 2560x1440 resolution, with 125% scale).
Note the version # half-way up, and a zoom in on my drawing ends seemingly at 1/4 of the total image.
This fixes itself if I modify the settings of the display. If the Carbide-Create is started through the start menu, it comes up fine.