Do you have show preview in workspace checked?
Load gcode to workspace. usually that part is automatic when opening gcode but the preview is not necessarily enabled.
The workspace preview is not really easy to look at to begin with as it shows the toolpaths.
If you really wana see whats going on with the slice, as well as have more control over the slice and better results, consider trying Cura. Here is a post with a video i made explaining the logic.