I also have one area that is glitched after trying to level it. The entrance to my main residence in our second largest village. Just a small strip of land but it is very frustrating. This glitch began last year so it is not being caused by the latest game upgrade.
https://steamcommunity.com/sharedfiles/filedetails/?id=2687397099
https://steamcommunity.com/sharedfiles/filedetails/?id=2687398370
https://steamcommunity.com/sharedfiles/filedetails/?id=2687398881