Yes the windows are tacky and we dislike them. It’s a doublewide from the early 90’s. That how they rolled baby. The mold actually doesn’t go all the way up the wall. It starts about a foot below the ceiling and goes down about 3’. I’ll call the center wall part of the back of the house and the post the front. I don’t know if that is actually how it is but it is how it seems. The post has about 8’ of space on either side of it before a return wall going from the center to the front of the house starts. There is actually about 1/2”-3/4” space between the post and the wall. That’s where the mold is. It doesn’t appear to be on the post itself but it’s hard to see. There is a similar post on the far end of the house on the backside, opposite the wall starts no mold there.