When your optimization reaches the precheck stage, the surface and grading objects are processed for any preliminary errors that could prevent optimization. If issues are found, the Low Optimization Confidence warning dialog displays.
You are given two options:
In either case, the Notification Center icon on the Optimization Toolbar will indicate the number of issues detected: .
Click the icon to open the Notification Center.
The Notification Center displays a list of known issues and if possible, a suggestion to resolve the issues. You can individually dismiss or dismiss all of the notifications in the panel.
When optimization is run again, the precheck will identify any remaining issues and report them.