Does rebooting the computer fix this? Or downloading the app from our website and replacing the installed one?
I understand, I was responding to @rmschne as he was asking you to post a screen cap of that toggle, even though there was already one posted earlier in this thread.
Hold the Option key and choose Help > Report bug to start a support ticket. Please include a screen capture of DEVONthink 3 > About DEVONthink 3. Thanks!