We've had a lot of issue's too with "move" lines cutting up our foam. The solution is rather simple and annoying.

First off - our foamcube software actually shows the "move" lines in blue so we know ahead of time if our DXF will cause problems. Usually rotating the piece (if possible) is a quick solution.

Now the real problem is that the software actually does exactly what it is supposed to do. It moves from 0,0,0,0 to the first node in your .DXF file. Most people don't even realize there is a start and end node in a .DXF file but in inkscape they can be visuallised. Our blog post explains this in detail , hope this helps :
http://foamcuttingcube.com/prevent-move-cut-destroying-work-dxf-starting-point/

regards,
Pete

Understood, thanks Pete! I will be recommending your machine here in Spain. Rgrds, Frank