Sort of. I"m doing the same thing, SVG file from Inkscape, defined in mm (actually imported as DXF from NanoCad and then modified a little in Inkscape, so I know I have absolute dimensions right, since this is for a circuit board). My intent is to black paint a circuit board as my mask, laser off the paint, and then etch. [Yes, I could just mill it, but I don’t want to mill in the room my A250 is in.]
I do reset the size of the document in Inkscape to the size of the contents, with zero padding. I have 2 layers, and actually save off each layer as a separate SVG so in Luban I can mark one to be just vector - leave fill unchecked, and one vector with fill checked.
They come in the wrong size, annoying but I think I can scale it and get almost right. But then there’s weird difference still between the EDIT and PROCESS views, where there’s a slight offset which matches the slight selection box ‘halo’ which still remains.
Edit view, note I place my axis (0,0) mark right AT (0,0):
When I export to workspace, the process view appears correct, meaning my exact zero is interior to my actual part to be lasered.
This is bothersome.