I'm Using 1.10 designer on windows 10 The line size is modified badly on some objects when exporting on svg format (exportation quality).
Step by step:
1) Draw a square, with line size about 10 pts. ok
2) Duplicate the square move it and convert to curves, OK
3) Duplicate the new curve, move it and move a nod with the node tool curve, so the square is no more the same square.
3) Export the document as pdf: Everything looks fine
4) Export the document as svg, with export quality. problem show on modified curve.
5) Export the document to svg high quality is fine.
I have the same problem with my ipad pro 12,9 last generation.
Bug1.afdesign
Bug3.svg
Bug1.pdf
Bug2.svg