I did saw the tutorial before and I try it again.
My project content 76 pages with a lot of components inside and 5 mastersa .
I made a new export today from the online version.
I try again to import in the desktop Iplotz files (by creating new projet from manage screen) and if I get all the sitemaps, I get only and one master, one page with its copoments and a other page with some components. The wirefranes are not linked with their master.
Iplotz is a very nice and clever tool, but success in export and import will be really important for us !