If I use Kicad with german language selected. When I use freerouter
and want to reimport the routed *.ses file allways the following error
occures: "Expecting number in file ...*.ses at line...".
If I run Kicad in english this error does not occur. I guess this has
something to do with the mutated vowel in "Lötseite" because the error
occurs just in the line where this word is listed. Unfortunally the
name of the layer seems to be fixed to the language of the first
edition. Even if I open the the board in a non-german language the
copper layer is called Lötseite. Therefor I have had to redraw the
board in english in order to use freerouter.