Has anyone had any issues with Unity eating prefabs of ui components? I had a canvas and a dialog box as prefabs last night, and now when I open Unity, they show up in the project pane, and I can expand them and see their children, but clicking on them shows nothing in the Inspector and if I try to rename them I get the message “Cannot rename object because it could not be loaded.”
Can you export and re import the prefab? That may solve the issue.
Please log a bug wit ha project that shows this issue.