I have a strange problem and maybe I just changed some crazy settings without noticing or it's a bug.
On one of my layouts I can't see most of the objects when I zoom out. Also the select boxes (where you can adjust the size, angle etc) disappear. When I run the game, there are no problems, just in the editor. Only one layout is affected.
Update: Restart of C2 didnt help but reboot of the computer. Maybe a bug Ashley?
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Have you tried updating your graphics card drivers?