With the editor/launcher closed, remove all previous versions plus the 4.10 version locally on the PC from the Documents>Unreal Projects folder (You do not need to delete them, just move them temporarily to a folder on your desktop). Then add only the version you sent me back to the Unreal Projects folder (be sure to use the one from the dropbox link to ensure we’re comparing “apples to apples.”) Open launcher and open the version you downloaded from the dropbox link:
- Does this produce the Externally Referenced errors?
- Does this correct the map loading issue?