Cross OS development terrain bug

I have a terrain that I have built for an island in Unity on MAC. I have recently been interested in developing the game on my windows machine because visual studio is better in this enviornment. In order to do so I created a git repository and used the standard .gitignore. Now I have it where it will load into windows but my problem is that the terrain appears to be rotated 90 degrees. The buildings, character and environment are all still placed correctly. The terrain also did not retain the paint that I applied to it with textures made available to me.

Below is a picture of how it looks in Unity on my Mac.



Here is what it looks like in windows.



Any help would be very much appreciated

Thank you for your help in advance.

I have googled as much as I could but to no success.