Although buildings look nice, they often miss faces, as in the bar's windows, or like this house. And all of them have terribly wrong pivot points. So don't be fooled by their cute look
faces are not missing ,it's just flipped,really easy fix, if you can use blender: just select the faces and shift+N to recalculate the normals, if not, there's probably an ez way to fix on the engine of your choice
and "often" is a big word, it's just for some items , not even 1%
and yes don't be fooled by their cute look, cause it doesn't look cute at all haha
of course if you use 100% of the 1%; it will be often, i talked about the whole pack. And as i said earlier, it's really easy fix, it takes literaly less time than writing this message, and you may ask "so why u don't publish a newer version with fixs", i whish i could but my internet is really bad, upload will fail
but i will probably upload a fix when my situation gets better (if it get better)
luckily for you, my assets are "often"(haha) free, so you have nothing to lose