Were you able to see the crash uploader tool? If you can upload your crash to us we can check it out. Please don't forget to copy the Crash ID and write it here so that we can find it.
More info about the crash uploader tool can be found here.
Have you checked out these threads about our Crash Checklist and Common Issues and Workarounds? They can help you find a solution as well.
sadly no im still redoing the map hight to what it was before that bug...
best idea im doing to deal with this in case it happen again is doing multipal backups with diffrent names and save very often and alwayschecking cetch and update the editor and the game every after patch jut in case..
im not sure if this will help but this is how I fixed the issue, what I had done is I had to reinstall both Bannerlord and its modding tools because I mod had messed up being able to start a new game but my mistake was that I had reinstalled it onto my second SSD rather then my first original SSD which is where I had previously had the game installed in. So I just reinstalled the game and editor toos in that first SSD where I had originally downloaded both the game and editing tools and the problem had fixed I got my terrain back.