Image colour change

Assuming you are using Lightroom Classic (are you?)

Try this: https://www.lightroomqueen.com/how-do-i-change-my-monitor-profile-to-check-whether-its-corrupted/

If that's not the solution, provide a lot more detail, provide screen capture of the library appearance of the image and provide screen capture of the develop appearanace of the image. Use the "Insert Photos" icon to include your screen captures; do NOT attach files.