It sounds like you’re encountering a technical issue with Unreal Engine related to landscape splines and control point selection. To address this problem:
- Try updating your Unreal Engine to the latest version. Newer versions often come with bug fixes and improvements.
- Check for any specific plugins or assets you might be using in your project that could be causing conflicts or issues. Disable them temporarily to see if the problem persists.
- Review the landscape and spline settings in your project to ensure they are configured correctly.
- If the issue persists, consider reaching out to the Unreal Engine community or support for assistance, as they may have encountered similar problems and could provide more specific solutions.
- Save your work regularly to avoid data loss when you encounter such issues.
Unfortunately, it’s difficult to provide a simple solution for such a technical problem, and you may need to go through a troubleshooting process to identify the root cause and resolve it.