I built my brother a house in Shor's Stone, to be used with http://www.nexusmods.com/skyrim/mods/18340/?, http://www.nexusmods.com/skyrim/mods/29249/?, and http://www.nexusmods.com/skyrim/mods/18045/? so he'd have a place for up to six kids and six followers, plus spouse. (I consider it an act of love that I've made it Stormcloak-friendly even though I play Imperial.) The mod is 99% finished--I'm debating on whether or not to throw in some armor/weapon crafting recipes or add Black Book and Elder Scroll displays--but I'm at my wits' end because I can't get MHYH to recognize it as a Hearthfires-compliant house, and now I've started getting CTDs in the exterior even though I've changed nothing in that exterior since the last time it was working fine. I've been working on it since December, and my brother's birthday is almost here, but nothing I do seems to fix it and I'm about to throw something through a window.

Can anyone help?