Talked to support and got it fixed.
Navigated to <username>/Library/Preferences, and removed com.omnigroup.OmniGraffle.plist
Then opened Console, searched for omni, and cleared the display.
Then re-ran the terminal command, created a new line, and everything works as expected!
Navigated to <username>/Library/Preferences, and removed com.omnigroup.OmniGraffle.plist
Then opened Console, searched for omni, and cleared the display.
Then re-ran the terminal command, created a new line, and everything works as expected!