I recently discovered a few things about how the designs are loaded up to the design “storefront” of Horizon 2 that can make lives easier if you guys aren’t already aware of them.
Firstly, if you post too many designs for the same car the game locks you out from being able to post new designs for that car, or at least this has happened to me. I believe this is a safeguard to avoid spamming and double posting which is reasonable enough.
Secondly, deleting a design out of your saved designs does NOT remove the design from the storefront, it just makes it more of a pain to track it down on the storefront, re-download your own design, then unshare it and delete it again. So if you are updating a design make sure you unshare the old design before deleting it.
Finally, the game overwrites the design you are working on every time you exit the paint booth or decal placement areas of the new design creator so make sure that you are not overwriting a saved design that you spent hours working on.
I believe that I am late to the party on this one but thought these tips might be helpful for anyone who was not aware of these changes. Maybe an update will come out in the near future that will help out with that second part but it is manageable as long as you remember to unshare before deleting.