Issue: After a resource is updated with an external editor, changes are not reflected in the workspace.
Solution: Take any of the following actions:
Select "Window" > "Preferences" > "General" > "Workspace" from the menu bar, and then select "Refresh automatically". When this option is selected, resources in the workspace are automatically synchronized with the corresponding resources in the file system.
When an external editor is used to update a resource, before executing the export, select the updated resource, or the folder containing it in the Dependency or Structure view, and then select "Refresh" from the context menu.