In the Version tab of AxiDraw Control, please double (then triple) check that you have “AxiDraw V3/A3” selected from the AxiDraw Model pop-up menu.
You can verify that the full plot area is available by plotting (for example) a large rectangle with no pen in the holder.
If you do have AxiDraw V3/A3 selected, and are still having trouble, let us know, and we’ll follow up separately.
If you need to use Inkscape 0.92 and are using Windows, please make sure that you properly uninstall any other versions of Inkscape before trying to install 0.92.