Strange splits in English countryside

Is there a way to reinstall the scenery without reinstalling the entire sim?
I am wondering if these problems might have been fixed for those who installed the sim fairly recently and it only persists for people who had this for a while and maybe the old scenery is persisting? I checked my steam purchase history and I apparently got fs2020 on 18 April 2021.
Interested to see how long others with the same issues have had fs2020?