Hi too ...
I read this https://www.eurobricks.com/forum/index.php?/forums/topic/95660-welcome-to-eurobricks-new-member-get-started-here/
And except if I didn't see it, there is nothing about the amount of datas that can be send. So I guess there is something to do with the vassal status.
However, the picture issue, isn't really one. I could use Cjoint for exemple to show more. But noone seem to have interest to help me