Hmm...I took my short wall, which already had windows in it, and increased the height, and then trimmed to the roof- and the windows didn't disappear or drop out at all. I was wondering if it has to do with the order of operations, so I deleted a couple of windows, and then added a new one...but still, everything looked like I wanted. Has anyone else experienced this? It seems like the bugs/ weirdness should be constant, and I don't know why this is inconstant. I am fairly certain it will happen again, someday, under some circumstances, so want to be ready for it...!
Thank you!