It seems like Unreal Engine is having trouble moving some files to the final location after saving. The error message is referencing a number of external assets, which may be causing the issue.
Try the following steps to resolve the issue:
- Make sure that the project folder has the necessary permissions to save files and assets.
- Try to manually delete the “tmp” files in the “Saved” folder of your project, as they may be causing conflicts with the saving process.
- If the issue persists, try creating a new project and see if the same problem occurs. This can help you determine if the issue is specific to this particular project or if it’s a general issue with Unreal Engine.
- If the problem still persists, try restarting Unreal Engine and your computer.