Comment 6 for bug 578969

It might also be worthwhile to change the 'Shape:' option from (I guess) 'From clipboard' back to 'None' - the paths in your document use a shape (a small 1px long horizontal line) as 'Single, stretched' pattern which is kind of redundant unless you need to adjust the width independent from the stroke width attribute or need the stroke rendered offset from the center line (using the 'Normal offset' parameter).