Gallery Server Issiue

Everytime I want to save a Selfmade Building in my Personal gallery, I get a notification that says that it's Not possible to save the lod to the gallery, because of Server issiue.

But when I do it with a premade lod (like when you Start a new Game), it works without any Problem. (I tried the mansion of the Goth-Family and the House of the BFF-Household)

I tried different sizes and different neighborhoods, but i get the Same notification.