Hi
(model in attach file).
version staruml = 6.0.1 os = Windows 10 Professionnel 22H2 Windows Feature Experience Pack 1000.19044
Margins appeared in png export after add part in component :
1/ add component in diagram

2/export in png
3/show png in ffx = fine
4/ add « part 1 » in « Component1 »
5/ export in png and show =
Top and left margins appeared
Thx.