I'm having the same problem of samantha8982. I'm pretty sure that I have all episodes and necessary store items installed, because I built other lots with them and I placed this lot on Dragon Valley, but when I place the lot, the wall towers, roofs, fences, archs and doors are replaced with some strange equivalents. I'll try to replace everything manually, I'm used to buy mode and this shall not be a big annoyance. I just wanted to leave my feedback.
Anyway, despite this little problem, I checked the rest and never saw any castle more well built. I'd like to thank you and congratulate you for this great job! :D

EDIT: Here's a picture of how it kinda looks.

Thank you for your feedback, @overdreams . When this problem was first posted I checked the file twice on two different computers and had no problems, neither with nor without any EPs and SPs. The only difference that might be a reason for this is some kind of mod or other stuff that is installed with the game (I don't use any other mod or cc for TS3). If that (a mod) is not the reason for this strange look of the lot then I have no idea what it is.

As for your picture I can tell for sure that not all store items are installed to your game. Some items from the Duke of Bows Renaissance Faire set are clearly missing and some of the Castle Kit (or Set) are missing as well. For whatever reason the game sometimes doesn't use all the installed items. Not sure how I can explain that (sorry, English is not my 1st language) - for example: I have/had all worlds installed and also some EA lots from the store. While I was able to play all worlds, some items from these worlds and some EA lots were missing in the lot bin. Those items were still in the launcher and I wasn't able to reinstall them. I first had to completely uninstall and reinstall them afterwards and then everything worked fine again. It seems that that the game has difficulties if too many objects, sets and worlds are installed at the same time.

I am deeply sorry for you and other people who are having the same problem with this lot. If reinstalling the store content doesn't help, I have no other solution for this problem. in your case, however, I can tell for sure that some store items are missing.

I'm having the same issue. I know for a fact that all my expansions are installed correctly as I've just installed them (including having each it's own folder) and ensured they all work. And I don't use mods either so it's not that. You've mentioned that you have bought "special" worlds from the EA Store. Perhaps you need to update the "pack requirements" to reflect that. It's a shame though, of all the "castles" I've seen, this is the best one.