While reading todays “digest” e-mail aka “[fritzing forum] Summary” I noticed this thread about a faulty Gerber export and some workaround with export and import magic to fix the problem:
Seems that there is no solution for my described problem above, but do anybody have an idea how to fix the curved traces issue with editing the relevant file directly?
Or would it help to add additional elements (what, where?) to force Fritzing to fill the empty gaps?