The same object! Was rotaed with copy rotation 45°. on -45° programm don’t like this line thickness and it fills the object. making line thiner is working but I need exactly 5mm lines. Turning object few degres also solves problem, but...
What does it do when you View > Preview on CPU?
Even when I convert path to objects it look like as on preview. When line is aligne to center the probleam dissapears.
And CPU preview looks like that as well?
Can you please upload the file to Dropbox or the like and share a link?